enquiries@aceplumbers.co.uk

01628369247

Baxi Boiler Error Codes

Baxi Platinum Error Codes

Fault Code
Possible Cause
E20
Central heating NTC error
E28
Error with the NTC (Negative Temperature Coefficient) flue, air pressure switch or blocked flue or condensate
E30
Hot water NTC (Negative Temperature Coefficient) error
E110
Thermostat operated safety
E119
Water pressure switch error – not operated.
E125
Primary circuit error circulation fault
E130
Flue NTC (Negative Temperature Coefficient) operation error
E133
Gas supply error or flame failure
E160
Fan or fan wiring error
E193
Pre-circulation error

Baxi EcoBlue Error Codes

Fault Code
Possible Cause
110
Overheated – try bleeding your radiators
117
Water pressure too high
118
Water pressure too low
125
Water circulation fault
133
Safety time to establish flame exceeded
E10
Outdoor sensor error
E20
Central heating thermistor sensor fault
E28
Flue thermistor fault
E54
Domestic hot water (DHW) flow sensor fault
E78
Water pressure sensor fault
E100
Internal clock time error on printed circuit board (PCB)
E109
Poor circulation
110
Overheat – try bleeding your radiators
111
Maximum limit of flow temperature
117
Water pressure too high
118
Water pressure too low
119
System pressure too low
125
Water circulation fault
127
Legionella (cause of Legionnaires’ disease) protection temperature not reached
128
Loss of flame during operation
133
Safety time to establish flame exceeded
153
Forced reset unit unlocked
160
Fan fault
162
Air pressure switch error
164
Pressure Sensor Error (UK) – Heating flow switch error (Ireland)
166
Air pressure switch fault
270
Dry fire
432
Earth connector error
433
Heat exchanger temperature exceeded (greater than 95 degrees)

EcoBlue Advance / Ecoblue Regular Gas Boiler Flashing Light Error Codes

Fault Code
Possible Cause
1 green flash
Boiler temperature reached. No action required.
3 green flashes
Temporary flame loss. Boiler will self reset, if fault continues you will see 3 red flashes.
4 green flashes
Communication error between printed circuit board (PCB) and control. Temporary error, will self reset.
5 green flashes
Parameter error on printed circuit board (PCB). Temporary error, will self reset​
6 green flashes​
Miscellaneous error. Temporary error, will self reset.
1 red flash
Sensor error, temperature fault or flow fault.
2 red flashes
Boiler overheat tripped
3 red flashes
Ignition fault. Boiler has attempted to light 5 times and failed.
4 red flashes
Fan fault
5 red flashes
Parameter storage unit (PSU) error.
6 red flashes
Miscellaneous error.

Baxi Duo-tec/Megaflo Error Codes

Fault Code
Possible Cause
E10​
Outdoor sensor fault
E20
Central heating thermistor sensor error
E28
Flue thermistor error
E110
Boiler overheat error
E119
Low water pressure error
E125
Primary water circulation error
E131
Flue overheat lockout error
E133
Ignition error
E160 / E161
Fan error
E164
Pressure sensor fault
E167
Printed circuit board (PCB) error
E168
Printed circuit board (PCB) lockout error
E193
Circulation error

Baxi 200 / 400 Combi Gas Boiler Error Codes

Fault Code
Possible Cause
H.01 – .00
Loss of communication between gas valve and boiler board. Possible fault in air/gas unit or loose connection to gas valve.
H.01 – .05
Difference between the flow and return temperature is too high, sensor error or insufficient circulation.
H.01 – .08
Sensor fault, flow temperature increasing too fast in heating mode or insufficient circulation.
H.01 – .14
Maximum flow temperature value exceeded or insufficient circulation – temporary fault.
H.01 – .18
No water circulation, insufficient circulation or sensor error.
H.01 – .21
Temporary error – flow temperature increasing too fast in domestic hot water (DHW) mode, insufficient circulation or sensor error.
H.02 – .02
Temporary error – no input of parameters C1/C2. Printed circuit board (PCB) not configured.
H.02 – .03
Temporary error- incorrect configuration settings C1/C2.
H.02 – .04
Temporary error- parameter fault. Incorrect parameters.
H.02 – .06
Temporary error caused by system water pressure, water leak on boiler, water leak on system.
H.03 -.00
Temporary error with communication, negative temperature coefficient thermostat (NTC) or flue sensor. Sensor could also be unconnected or have a bad connection.
H.03 – .01
Communication error with the printed circuit board (PCB)
H.03 – .02
Flame error – no flame during operation.
E.00 – .04
Return temperature sensor open-circuit. Sensor not or badly connected.
E.00 – .05
Return temperature sensor short-circuit. Sensor not connected or badly connected.
E.01 – .02
Temperature measured by return sensor greater than flow sensor.
E.01 – .04
Loss of flame detected 5 times in 24 hours (with burner on).
E.01 – .11
Incorrect fan speed – external draught over the boiler or defective gas/air unit.
E.01 – .12
Requires reset – temperature measured by return sensor greater than flow temperature.
E.01 – .17
Reset the boiler – no circulation, sensor fault either not connected or has a bad connection.
E.01 – .20
Maximum flue gas temperature reached. No circulation or sensor fault.
E.02 – .00
Reset button has been pressed.
E.02 – .07
No or low system water pressure. system pressure less than 0.5bar
E.02 – .16
Permanent fault caused by channel service unit (CSU) time-out or printed circuit board (PCB) damage.
E.02 – .17
Loss of communication between gas valve and boiler printed circuit board (PCB) or fault in air/gas unit.
E.02 – .19
Jumper 1 changed – check position of jumper 1.
E.02 – .20
Jumper 2 changed – check position of jumper 2.
E.02 – .21
Jumper 3 changed – check position of jumper 3.
E.02 – .47
Wiring to external device error.
E.02 – .48
Configuration to external device unsuccessful – check pairing to external device.
E.04 – .00
Gas valve error – gas valve not detected.
E.04 – .01
Flow temperature sensor short-circuited. Sensor not or badly connected, bad connection or sensor fault.
E.04 – .02
Permanent fault. Flow temperature sensor open-circuited, sensor not or badly connected, bad connection or sensor fault.
E.04 – .03
Permanent fault. Critical flow temperature reached, non-existent or insufficient circulation.
E.04 – .04
Permanent fault. Flue temperature sensor short-circuited, sensor not or badly connected, bad connection or sensor fault.
E.04 – .05
Permanent fault. Flue temperature sensor short-circuited, sensor not or badly connected, bad connection or sensor fault.
E.04 – .06
Permanent fault. Critical flue gas temperature value reached, no circulation or sensor fault.
E.04 – .08
Permanent fault. Maximum safe temperature value reached, safety thermostat open-circuited, no circulation, sensor not or badly connected, bad connection or sensor fault.
E.04 – .10
Failure to light (could be gas supply issue).
E.04 – .12
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) or defective gas/air unit.
E.04 – .13
Permanent fault. Fan rotor blocked, fan seized or wiring to fan damaged.
E.04 – .17
Permanent fault. Problem with gas valve or defective gas/air unit.

Baxi 600 Combi Gas Boiler Error Codes

Fault Code
Possible Cause
E09
Gas valve connection cable.
E10
External probe fault.
E12
Differential water flow switch fault (still open).
E13
Differential water flow switch fault (still closed).
E15
Gas valve command fault.
E20
Central heating negative temperature coefficient (NTC) thermostat fault.
E28
Flue negative temperature coefficient (NTC) thermostat fault.
E40
Central heating return negative temperature coefficient (NTC) thermostat fault.
E50
Domestic hot water (DHW) negative temperature coefficient (NTC) thermostat sensor fault (tank boiler) (s.c.) or DHW NTC sensor fault (tank boiler) (o.c.).
E83/E84/E85/E86/E87
No communication.
E109
Pre-circulation fault.
E110
Boiler max temperature exceeded for gradient (probable pump jammed or air in the circuit
Boiler max temperature exceeded for overtemperature (probable pump jammed or air in the circuit
Safety thermostat sensor tripped.
E118
Primary system water pressure too low (< 0.5 bar). E125 Circulation fault (primary). E128 Frequent flame failure (12 times). E129 Safety error for frequently loss of flame with max correction during the ignition during Calibration Function. E130 Flue thermostat sensor tripped (lockout). E133 Failure to light (could be a gas supply issue). E134 Elapsed time gas valve open without gas (short request in a short period) E135 Interruption of gas supply (internal error). E154 Flow/return sensor temperature test. E160 Fan or fan wiring fault. E163 Domestic hot water (DHW) negative temperature coefficient (NTC) thermostat sensor fault (s.c.) or DHW NTC sensor fault (o.c.). E270 Circulation fault (dry fire). E317 Wrong power supply electrical frequency (Hz). E321 Hot water negative temperature coefficient (NTC) fault. E384 False flame. E385 Under voltage. E430 Water pressure temporary test. E430 + Flame ‘crossed’ Water pressure test failed.

Baxi MainEco Error Codes

Fault Code
Possible Cause
1 Green Flash
Boiler temperature reached – no action required
3 Green Flashes
Temporary flame loss – this is a temporary error, the system should reset on its own
4 Green Flashes
Communication error between printed circuit board (PCB) and Control – this is a temporary error, the system should reset on its own
5 Green Flashes
Parameter error on parameter storage unit (PSU) or printed circuit board (PCB) – this is a temporary error, the system should reset on its own.
6 Green Flashes
Miscellaneous error
1 Red Flash
Sensor error, sensor fault, temperature fault or flow fault – this is a temporary error, the system should reset on it’s own.
2 Red Flashes
Boiler overheat tripped
3 Red Flashes
Ignition fault. Boiler has attempted to light 5 times and failed
4 Red Flashes
Fan Fault
5 Red Flashes
Parameter storage unit (PSU) error
6 Red Flashes
Miscellaneous

Baxi Avanta Range Error Codes

Fault Code
Possible Cause
E0
Temperature sensor fault
E1
Overheated – try bleeding your radiators
E2
Overheated – try bleeding your radiators
E2 Poor circulation – try bleeding your radiators
E3
Printed circuit board (PCB) fault
E4
Ignition failure – try bleeding your radiators
E10
Poor/No circulation
E12
Printed circuit board (PCB) Fault
E13
Heat exchanger thermal fuse tripped
E83 / 84 / 85 / 86 / 87
Fan fault normally E8

Baxi GA Range Error Codes

Fault Code
Possible Cause
E53
Poor combustion – flue terminal may be blocked
E110
Overheated – try bleeding your radiators
E117
System water pressure high – try bleeding water from your radiators
E118
System water pressure low
E125
Overheat – try bleeding your radiators
E133
Gas supply fault
E4
Ignition failure
E09
Gas valve wiring fault
E10
Outdoor sensor error
E15
Gas valve connection fault
E20
Central heating thermistor sensor fault
E28
Flue thermistor fault
E40
Central heating return thermistor fault
E53
Flue obstruction
E55
Calibration required
E78
Water pressure sensor fault
E92
Combustion test alarm during auto-setting
E109
Poor circulation
E110
Boiler overheat tripped
E117
System pressure high (>2.9 Bar)
E118
System pressure low(< 0.5bar) E125 Primary water circulation fault E128 Loss of flame during operation E129 Loss of flame during calibration E133 Ignition fault E135 Internal error E154 Primary flow fault E160 Fan fault E270 Dry fire E317 Wrong power supply (Hz) E321 Not water thermistor fault E384 Flame detected when gas valve off E385 Low voltage (less than 195v)

Baxi Solo Error Codes

Fault Code
Possible Cause
FLASH FLASH ON
Fan error
FLASH OFF FLASH
Voltage less than 180V
FLASH OFF ON
Overheat lockout
FLASH ON FLASH
Printed circuit board (PCB) error
FLASH ON ON
Printed circuit board (PCB) fault
OFF OFF OFF
No power
ON FLASH FLASH
Circulation error or dry fire
ON FLASH ON
Thermistor error
ON OFF FLASH
Live and neutral reversed error
ON OFF ON
Ignition lockout error
ON ON FLASH
Printed circuit board (PCB) error
ON ON ON
Low voltage wiring harness error

Request Call Back
close slider