Baxi Gas Boiler Error Codes
Error E01 - the flame sensor is responsible for this error
Lack of air
Defective gas valve
No gas
Defective, contaminated or incorrectly installed flame monitor
Loosely attached coaxial chimney
Defective ignition system
Error E02 (02E) - overheating safety thermostat
Insufficient circulation of coolant through the primary heat exchanger
Overheating of water in the main circuit
The absence of a good contact between the temperature sensor of the heating circuit and the coolant
No contact between board and overheating thermostat
Defective thermostat overheating
Error E03 (03E) - the diagnosis of this error is answered by a pneumatic relay (thrust sensor)
Fault pneumatic relay - traction sensor
No contact between board and fan
The connection of the pipes to the pneumatic relay
Water has entered the pipes connecting the pneumatic relay with the venturi device
Chimney or chimney flue gasification
Faulty fan
Exceeded the maximum length of the chimneys
Error E10 (10E) - minimum pressure switch
Defective minimum pressure switch for heating circuit
Insufficient water pressure in the heating circuit
There is no contact between the board and the minimum pressure switch of the heating circuit
Error E06 (06E) - DHW temperature sensor
Defective electronic board
The DHW temperature sensor is defective
There is no contact between the board and the DHW temperature sensor
Error E05 (05E) - heating circuit temperature sensor
Defective electronic board
Defective heating circuit temperature sensor
There is no contact between the board and the temperature sensor of the heating circuit
Error E04 (04E) - Flame monitoring electrode
Defective electronic board
Bad contact of the flame monitoring electrode
Unstable voltage in the network
The flame monitoring electrode is dirty
Incorrect work of the chimney
Error E25 (25E) - the temperature sensor of the heating circuit
The heating system is inflated
Defective heating circuit temperature sensor
Pump blockage possible
Error E25 (25E) - DHW and DHW temperature sensor
Presence of scale in bithermal heat exchange. It is necessary to replace or flush the heat exchanger
Error E35 (35E) - Flame monitoring electrode
Moisture on the electronic board of the boiler
The presence of a flame after the burner is switched off - a parasitic flame
Error E96 (96E) - an electronic board
Low voltage in the mains, it is necessary to install a voltage regulator