Error Codes

If a Baxi boiler develops a problem, the boiler will display an error code to help you identify the issue. The most common of these error codes are explained below.


If the boiler you're working on is displaying an error code which isn't described below, please contact Baxi Customer Support who will be happy to help.

  • Baxi 200 Combi / Baxi 400 Combi
  • Baxi 600 Combi
  • Baxi 600 Heat / Main Eco Compact Heat
  • Baxi 600 System / Baxi 600 LPG
  • EcoBlue (Combi & System)
  • EcoBlue (Heat)
  • Duo-tec /Megaflo
  • Solo (Heat)
  • GA range
  • Avanta range
  • Main Eco Compact Heat
  • Main Eco

error code

possible fault

installer action

H.01 - .00

possible fault Temporary Fault - Temporary loss of communication between gas valve and boiler board. Fault in air/gas unit.

Loose connection to gas valve.

installer action Log into baxiworks.co.uk for more information about this error code.

H.01 - .05

possible fault Temporary Fault - Maximum difference between the flow and return temperature exceeded. Non-existent or insufficient circulation. Sensor error.

installer action Log into baxiworks.co.uk for more information about this error code.

H.01 - .08

possible fault Temporary Fault - Flow temperature increasing too fast in heating mode. Non-existent or insufficient circulation.
Sensor error.

installer action Log into baxiworks.co.uk for more information about this error code.

H.01 - .14

possible fault Temporary Fault - Maximum flow temperature value exceeded. Non-existent or insufficient circulation. Non-existent or insufficient circulation.

installer action Log into baxiworks.co.uk for more information about this error code.

H.01 - .18

possible fault Temporary Fault - No circulation of water. Non-existent or insufficient circulation. Sensor error.

installer action Log into baxiworks.co.uk for more information about this error code.

H.01 - .21

possible fault Temporary Fault - Flow temperature increasing too fast in DHW mode. Non-existent or insufficient circulation. Sensor error.

installer action Log into baxiworks.co.uk for more information about this error code.

H.02 - .02

possible fault Temporary Fault - No input of parameters C1/C2. PCB not configured.

installer action Log into baxiworks.co.uk for more information about this error code.

H.02 - .03

possible fault Temporary Fault- Incorrect configuration settings C1/C2.

installer action Log into baxiworks.co.uk for more information about this error code.

H.02 - .04

possible fault Temporary Fault - Parameter error. Incorrect parameters.

installer action Log into baxiworks.co.uk for more information about this error code.

H.02 - .06

possible fault Temporary Fault - System water pressure. Water leak on boiler. Water leak on system.

installer action Log into baxiworks.co.uk for more information about this error code.

H.03 -.00

possible fault Temporary Fault - Communication error with NTC flue sensor. Sensor not, or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

H.03 -.01

possible fault Temporary Fault - Communication error with the HMI PCB. HMI not connected.

installer action Log into baxiworks.co.uk for more information about this error code.

H.03 -.02

possible fault Temporary Fault - No flame during operation. No ionization current.

installer action Log into baxiworks.co.uk for more information about this error code.

E.00 - .04

possible fault Permanent Fault - Return temperature sensor open-circuit. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.00 - .05

possible fault Permanent Fault - Return temperature sensor open-circuit. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.01 - .02

possible fault Permanent Fault - Temperature measured by return sensor greater than flow sensor. Bad connection. Sensor fault. Sensor not or badly connected.

installer action Log into baxiworks.co.uk for more information about this error code.

E.01 - .04

possible fault Permanent Fault - Loss of flame detected 5 times in 24 hours (With burner on). No ionization current.

installer action Log into baxiworks.co.uk for more information about this error code.

E.01 - .11

possible fault Permanent Fault Requiring Reset - Incorrect fan speed. External draught over the boiler. Defective gas/air unit.

installer action Log into baxiworks.co.uk for more information about this error code.

E.01 - .12

possible fault Permanent Fault Requiring Reset - Temperature measured by return sensor greater than flow temperature.

installer action Log into baxiworks.co.uk for more information about this error code.

E.01 - .17

possible fault Permanent Fault Requiring Reset - No circulation. Sensor not or badly connected. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.01 - .20

possible fault Permanent Fault - Maximum flue gas temperature value reached (>140 Deg C). No circulation. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .00

possible fault Permanent Fault - Boiler reset in progress. Reset button has been pressed.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .07

possible fault No or low system water pressure. Low system pressure (less than 0.5bar) boiler will not function.

installer action Use the filling loop to repressurise system to between 1 & 2 bar.

E.02 - .16

possible fault Permanent Fault - On board CSU time-out. Check PCB for damage.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .17

possible fault Permanent Fault - Permanent loss of communication between gas valve and boiler PCB. Fault in air/gas unit. Loose connection to gas valve.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .19

possible fault Permanent Fault - Jumper 1 changed. Check position of jumper 1.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .20

possible fault Permanent Fault - Jumper 2 changed. Check position of jumper 2.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .21

possible fault Permanent Fault - Jumper 3 changed. Check position of jumper 3.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .47

possible fault Permanent Fault - Connection to external device unsuccessful. Check wiring to external device.

installer action Log into baxiworks.co.uk for more information about this error code.

E.02 - .48

possible fault Permanent Fault - Configuration to external device unsuccessful. Check pairing to external.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .00

possible fault Permanent Fault - Gas valve fault. Gas valve not detected.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .01

possible fault Permanent Fault - Flow temperature sensor short-circuited. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .02

possible fault Permanent Fault - Flow temperature sensor open-circuited. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .03

possible fault Permanent Fault - Critical flow temperature reached. Non-existent or insufficient circulation.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .04

possible fault Permanent Fault - Flue temperature sensor short-circuited. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .05

possible fault Permanent Fault - Flue temperature sensor open-circuited. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .06

possible fault Permanent Fault - Critical flue gas temperature value reached. No circulation. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .08

possible fault Permanent Fault - Maximum safe temperature value reached. (Safety thermostat open-circuited). No circulation. Sensor not or badly connected. Bad connection. Sensor fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .10

possible fault Failure to light (could be gas supply issue).

installer action Check that the gas supply is available. If possible try lighting a gas cooker or fire.

E.04 - .12

possible fault Permanent Fault - False flame signal. Short-term fluctuation of the mains. Ionization current present even though there is no flame. The burner remains very hot (CO2 too high). Defective gas/air unit.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .13

possible fault Permanent Fault - Fan rotor blocked. Fan seized. Wiring to fan damaged.

installer action Log into baxiworks.co.uk for more information about this error code.

E.04 - .17

possible fault Permanent Fault - Problem with gas valve. Defective gas/air unit.

installer action Log into baxiworks.co.uk for more information about this error code.

error code

possible fault

installer action

E09

possible fault Gas valve connection cable.

installer action Log into baxiworks.co.uk for more information about this error code.

E10

possible fault External probe fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E12

possible fault Differential water flow switch fault (still open).

installer action Log into baxiworks.co.uk for more information about this error code.

E13

possible fault Differential water flow switch fault (still closed).

installer action Log into baxiworks.co.uk for more information about this error code.

E15

possible fault Gas valve command fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E20

possible fault Central heating NTC fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E28

possible fault Flue NTC fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E40

possible fault Central heating return NTC fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E50

possible fault DHW NTC sensor fault (tank boiler) (s.c.) OR DHW NTC sensor fault (tank boiler) (o.c.).

installer action Log into baxiworks.co.uk for more information about this error code.

E83/E84/E85/E86/E87

possible fault No communication.

installer action Log into baxiworks.co.uk for more information about this error code.

E109

possible fault Pre-circulation fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E110

possible fault i) Boiler max temperature exceeded for gradient (probable pump jammed or air in the circuit). OR ii) Boiler max temperature exceeded for overtemperature (probable pump jammed or air in the circuit). OR iii) Safety thermostat sensor tripped.

installer action Log into baxiworks.co.uk for more information about this error code.

E118

possible fault Primary system water pressure too low (< 0.5 bar).

installer action Log into baxiworks.co.uk for more information about this error code.

E125

possible fault Circulation fault (primary).

installer action Log into baxiworks.co.uk for more information about this error code.

E128

possible fault Frequent flame failure (12 times).

installer action Log into baxiworks.co.uk for more information about this error code.

E129

possible fault Safety error for frequently loss of flame with max correction during the ignition during Calibration Function.

installer action Log into baxiworks.co.uk for more information about this error code.

E130

possible fault Flue thermostat sensor tripped (lockout).

installer action Log into baxiworks.co.uk for more information about this error code.

E133

possible fault Failure to light (could be a gas supply issue).

installer action Check that the gas supply is available. If possible try lighting a gas cooker or fire.

E134

possible fault Elapsed time gas valve open without gas (short request in a short period)

installer action Log into baxiworks.co.uk for more information about this error code.

E135

possible fault Interruption of gas supply (internal error).

installer action Log into baxiworks.co.uk for more information about this error code.

E154

possible fault Flow/return sensor temperature test.

installer action Log into baxiworks.co.uk for more information about this error code.

E160

possible fault Fan or fan wiring fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E163

possible fault Domestic Hot Water NTC sensor fault (s.c.) OR Domestic Hot Water NTC sensor fault (o.c.).

installer action Log into baxiworks.co.uk for more information about this error code.

E270

possible fault Circulation fault (dry fire).

installer action Log into baxiworks.co.uk for more information about this error code.

E317

possible fault Wrong power supply electrical frequency (Hz).

installer action Log into baxiworks.co.uk for more information about this error code.

E321

possible fault Hot water NTC fault.

installer action Log into baxiworks.co.uk for more information about this error code.

E384

possible fault False flame.

installer action Log into baxiworks.co.uk for more information about this error code.

E385

possible fault Under voltage.

installer action Log into baxiworks.co.uk for more information about this error code.

E430

possible fault Water pressure temporary test.

installer action Log into baxiworks.co.uk for more information about this error code.

E430 + Flame 'crossed'

possible fault Water pressure test failed.

installer action Log into baxiworks.co.uk for more information about this error code.

error code

possible fault

user action

1 flash green

possible fault Maximum flow temperature exceeded, Flow temperature rise rate too high, Excessive difference between, flow and return temperature

User action Log into baxiworks.co.uk for more information about this error code.

2 flashes green

possible fault BL terminals on User Interaction, Controller are open circuit

User action Log into baxiworks.co.uk for more information about this error code.

3 flashes green

possible fault No flame detected during operation

User action Log into baxiworks.co.uk for more information about this error code.

4 flashes green

possible fault Bad connection or wiring fault, Internal communication fault

User action Log into baxiworks.co.uk for more information about this error code.

5 flashes green

possible fault Parameter error or faulty PU, Configuration error or PCB fault

User action Log into baxiworks.co.uk for more information about this error code.

6 flashes green

possible fault possible fault Internal fault in combustion control unit

User action Log into baxiworks.co.uk for more information about this error code.

1 flash red

possible fault Bad connection to flow or return temperature sensor

User action Log into baxiworks.co.uk for more information about this error code.

2 flashes red

possible fault Over-temperature thermostat on heat exchanger activated, No water flow through heat exchanger, PCB over-temperature condition, Flue fault resulting in, Recirculation or activation of airpressure switch (if fitted)

User action Log into baxiworks.co.uk for more information about this error code.

3 flashes red

possible fault No ignition, No flame detected following ignition, False flame signal detected

User action Log into baxiworks.co.uk for more information about this error code.

4 flashes red

possible fault Fan calibration error, Fan failure

User action Log into baxiworks.co.uk for more information about this error code.

5 flashes red

possible fault Bad connection to PU, Parameter error or faulty PU

User action Log into baxiworks.co.uk for more information about this error code.

6 flashes red

possible fault possible fault Bad connection or wiring fault, Parameter error

User action Log into baxiworks.co.uk for more information about this error code.

error code

possible fault

User Action

E09

possible fault Gas valve connection cable

User action Log into baxiworks.co.uk for more information about this error code.

E15

possible fault Gas valve fault

User action Log into baxiworks.co.uk for more information about this error code.

E20

possible fault Central heating NTC fault

User action Log into baxiworks.co.uk for more information about this error code.

E28

possible fault Flue NTC fault

User action Log into baxiworks.co.uk for more information about this error code.

E40

possible fault Central heating return NTC fault

User action Log into baxiworks.co.uk for more information about this error code.

E83

possible fault Communication error

User action Log into baxiworks.co.uk for more information about this error code.

E109

possible fault Pre-circulation fault

User action Log into baxiworks.co.uk for more information about this error code.

E110

possible fault Safety thermostat operated

User action Log into baxiworks.co.uk for more information about this error code.

E118

possible fault Primary system water pressure too low

User action Log into baxiworks.co.uk for more information about this error code.

E125

possible fault Circulation fault (primary)

User action Log into baxiworks.co.uk for more information about this error code.

E128

possible fault Flame failure

User action Log into baxiworks.co.uk for more information about this error code.

E130

possible fault Flue NTC operated

User action Log into baxiworks.co.uk for more information about this error code.

E133

possible fault Interruption of gas supply or flame failure

User action Log into baxiworks.co.uk for more information about this error code.

E135

possible fault Interruption of gas supply (internal error)

User action Log into baxiworks.co.uk for more information about this error code.

E135

possible fault Interruption of gas supply (internal error)

User action Log into baxiworks.co.uk for more information about this error code.

E154

possible fault Flow/ return sensor temperature test

User action Log into baxiworks.co.uk for more information about this error code.

E160

possible fault Fan or fan wiring fault

User action Log into baxiworks.co.uk for more information about this error code.

E270

possible fault Circulation fault (Dry fire)

User action Log into baxiworks.co.uk for more information about this error code.

E321

possible fault Hot water NTC fault

User action Log into baxiworks.co.uk for more information about this error code.

E384

possible fault False flame

User action Log into baxiworks.co.uk for more information about this error code.

error code

possible fault

installer action

E10

possible fault Outdoor Sensor Error

installer action Log into baxiworks.co.uk for more information about this error code.

E20

possible fault Central Heating Thermistor Sensor Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E28

possible fault Flue Thermistor Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E54

possible fault HW Flow Sensor Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E78

possible fault Water Pressure Sensor Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E100

possible fault Internal Clock Time Error on PCB

installer action Log into baxiworks.co.uk for more information about this error code.

E109

possible fault Poor Circulation

installer action Log into baxiworks.co.uk for more information about this error code.

110

possible fault Overheat

installer action Check radiators are bled.

111

possible fault Maximum Limit of Flow Temperature

installer action Log into baxiworks.co.uk for more information about this error code.

117

possible fault Water pressure too high

installer action Bleed water from radiators

118

possible fault Water pressure too low

installer action Add water via filling loop

119

possible fault System Pressure Low (<0.5 bar)

installer action Log into baxiworks.co.uk for more information about this error code.

125

possible fault Water circulation fault

installer action Bleed radiators, check system water pressure and refill via filling loop if low

127

possible fault Legionella Protection Temperature not reached

installer action Log into baxiworks.co.uk for more information about this error code.

128

possible fault Loss of flame during operation

installer action Log into baxiworks.co.uk for more information about this error code.

133

possible fault Safety time to establish flame exceeded

installer action Check gas is turned on, if prepayment meter check there is credit. If all ok and this fault persists - contact engineer to visit and investigate

153

possible fault Forced reset unit unlocked

installer action Log into baxiworks.co.uk for more information about this error code.

160

possible fault Fan Fault

installer action Log into baxiworks.co.uk for more information about this error code.

162

possible fault Air pressure switch error

installer action Log into baxiworks.co.uk for more information about this error code.

164

possible fault Heating flow switch error (Ireland) Pressure Sensor Error (UK)

installer action Log into baxiworks.co.uk for more information about this error code.

166

possible fault Air Pressure Switch Fault

installer action Log into baxiworks.co.uk for more information about this error code.

270

possible fault Dry Fire

installer action Log into baxiworks.co.uk for more information about this error code.

432

possible fault Earth connector error

installer action Log into baxiworks.co.uk for more information about this error code.

433

possible fault Heat exchanger temperature exceeded (greater than 95 degrees)

installer action This is a temporary error and will clear automatically.

Code

possible fault

installer action

1 Green flash

possible fault Boiler temp reached

3 Green flashes

possible fault Temporary Flame Loss

installer action Temporary error, self reset, if continues will go to 3 red flashes

4 Green flashes

possible fault Communication error between PCB and Control

installer action Temporary error, self reset.

5 Green flashes

possible fault Parameter Error On PSU/PCB

installer action Temporary error, self reset.

6 Green flashes

possible fault Miscellaneous Error

installer action Temporary error, self reset.

1 Red flash

possible fault Sensor Error; Sensor Fault, Temperature Fault or Flow Fault

installer action Log into baxiworks.co.uk for more information about this error code.

2 Red flashes

possible fault Boiler overheat tripped

installer action Log into baxiworks.co.uk for more information about this error code.

3 Red flashes

possible fault Ignition fault. Boiler has attempted to light 5 times and failed

installer action Log into baxiworks.co.uk for more information about this error code.

4 Red flashes

possible fault Fan Fault

installer action Log into baxiworks.co.uk for more information about this error code.

5 Red flashes

possible fault Parameter or PSU Error

installer action Log into baxiworks.co.uk for more information about this error code.

6 Red flashes

possible fault Miscellaneous

installer action Log into baxiworks.co.uk for more information about this error code.

Code

possible fault

installer action

E10

possible fault Outdoor sensor error

installer action Log into baxiworks.co.uk for more information about this error code.

E20

possible fault Central Heating Thermistor Senor Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E28

possible fault Flue Thermistor Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E110

possible fault Boiler Overheat

installer action Ensure radiators are bled of air

E119

possible fault Low water pressure

installer action Add water to the system via filling loop

E125

possible fault Primary Water Circulation Fault

installer action Ensure radiators are bled of air

E131

possible fault Flue overheat lock out

installer action This may follow a power cut, try reset

E133

possible fault Ignition fault

installer action Check gas is turned on, if prepayment meter check there is credit. If all ok and E133 persists - contact Engineer to visit & investigate

E160/E161

possible fault Fan Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E164

possible fault Fan Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E167

possible fault PCB Fault

installer action Log into baxiworks.co.uk for more information about this error code.

E168

possible fault PCB lock out

installer action May follow power supply problem; try reset.

E193

possible fault Circulation fault

installer action This error, if it persists, will be followed by E125

Code

possible fault

installer action

Flash Flash On

possible fault Fan Fault

installer action Log into baxiworks.co.uk for more information about this error code.

Flash Off Flash

possible fault Incoming Voltage less then 180V

installer action Log into baxiworks.co.uk for more information about this error code.

Flash Off On

possible fault Overheat lockout

installer action Log into baxiworks.co.uk for more information about this error code.

Flash On Flash

possible fault PCB fault

Flash On On

possible fault PCB fault

Off Off Off

possible fault No power supply

installer action Log into baxiworks.co.uk for more information about this error code.

On Flash Flash

possible fault No circulation/dry fire

installer action Log into baxiworks.co.uk for more information about this error code.

On Flash On

possible fault Thermistor fault

installer action Log into baxiworks.co.uk for more information about this error code.

On Off flash

possible fault Live and neutral reversed

installer action Log into baxiworks.co.uk for more information about this error code.

On Off On

possible fault Ignition lockout

installer action Log into baxiworks.co.uk for more information about this error code.

On Off Flash

possible fault PCB fault

On Off Flash

possible fault Low voltage wiring harness fault

Code

possible fault

User action

E4

possible fault Ignition failure

installer action Log into baxiworks.co.uk for more information about this error code.

E4

possible fault Ignition failure

installer action Log into baxiworks.co.uk for more information about this error code.

E09

possible fault Gas valve wiring fault

installer action Log into baxiworks.co.uk for more information about this error code.

E10

possible fault Outdoor sensor error

installer action Log into baxiworks.co.uk for more information about this error code.

E15

possible fault Gas valve connection fault

installer action Log into baxiworks.co.uk for more information about this error code.

E20

possible fault Central heating thermistor sensor fault

installer action Log into baxiworks.co.uk for more information about this error code.

E28

possible fault Flue thermistor fault

installer action Log into baxiworks.co.uk for more information about this error code.

E40

possible fault Central heating return thermistor fault

installer action Log into baxiworks.co.uk for more information about this error code.

E53

possible fault Flue obstruction

installer action Log into baxiworks.co.uk for more information about this error code.

E55

possible fault Calibration required

installer action Log into baxiworks.co.uk for more information about this error code.

E78

possible fault Water pressure sensor fault

E92

possible fault Combustion test alarm during auto-setting

installer action Log into baxiworks.co.uk for more information about this error code.

E109

possible fault Poor circulation

installer action Log into baxiworks.co.uk for more information about this error code.

E110

possible fault Boiler overheat tripped

installer action Log into baxiworks.co.uk for more information about this error code.

E117

possible fault System pressure high (>2.9 Bar)

installer action Log into baxiworks.co.uk for more information about this error code.

E118

possible fault System pressure low( < 0.5bar)

installer action Log into baxiworks.co.uk for more information about this error code.

E125

possible fault Primary water circulation fault

installer action Log into baxiworks.co.uk for more information about this error code.

E128

possible fault Loss of flame during operation

installer action Log into baxiworks.co.uk for more information about this error code.

E129

possible fault Loss of flame during calibration

installer action Log into baxiworks.co.uk for more information about this error code.

E133

possible fault Ignition fault

installer action Log into baxiworks.co.uk for more information about this error code.

E135

possible fault Internal error

installer action Log into baxiworks.co.uk for more information about this error code.

E154

possible fault Primary flow fault

installer action Log into baxiworks.co.uk for more information about this error code.

E160

possible fault Fan fault

installer action Log into baxiworks.co.uk for more information about this error code.

E270

possible fault Dry fire

installer action Log into baxiworks.co.uk for more information about this error code.

E317

possible fault Wrong power supply (Hz)

installer action Log into baxiworks.co.uk for more information about this error code.

E321

possible fault Not water thermistor fault

installer action Log into baxiworks.co.uk for more information about this error code.

E384

possible fault Flame detected when gas valve off

installer action Log into baxiworks.co.uk for more information about this error code.

E385

possible fault Low voltage (less than 195v)

installer action Log into baxiworks.co.uk for more information about this error code.

Code

possible fault

User action

E0

possible fault Temperature sensor fault

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E1

possible fault Boiler overheat tripped

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E2

possible fault Poor circulation

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E3

possible fault PCB fault

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E4

possible fault Ignition failure

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E10

possible fault Poor/No circulation

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E12

possible fault PCB Fault

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E13

possible fault Heat exchanger thermal fuse tripped

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E83/84/85/86/87

possible fault Fan fault normally E8

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Code

possible fault

User action

1 Green Flash

possible fault Boiler temp reached

3 Green Flashes

possible fault Boiler temp reached

User action Temporary error, self reset, if continues will go to 3 red flashes

3 Green Flashes

possible fault Temporary Flame Loss

User action Temporary error, self reset, if continues will go to 3 red flashes

4 Green Flashes

possible fault Communication error between PCB and Control

User action Temporary error, self reset.

5 Green Flashes

possible fault Parameter Error On PSU/PCB

User action Temporary error, self reset.

6 Green Flashes

possible fault Miscellaneous Error

User action Temporary error, self reset.

1 Red Flash

possible fault Sensor Error; Sensor Fault, Temperature Fault or Flow Fault

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2 Red Flashes

possible fault Boiler overheat tripped

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3 Red Flashes

possible fault Ignition fault. Boiler has attempted to light 5 times and failed

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4 Red Flashes

possible fault Fan Fault

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5 Red Flashes

possible fault Parameter or PSU Error

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6 Red Flashes

possible fault Miscellaneous

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