BoilerFaultCodes.com

Ideal Response SE Fault Codes

Combi Natural GasLPG 24-30 kW 2002-2005 Discontinued
GC Numbers: 47-348-1847-348-1947-348-20

Replaced by: isal

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Most common fault codes

1
Your boiler is failing to complete its initial safety check of the air fan before starting the ignition process.
Gas Safe engineer required · £180-350
2
Your boiler is trying to start but cannot successfully light the gas to create a flame.
May be DIY safe · £120-£350
3
Your boiler is struggling to light or cannot detect a flame while trying to provide central heating.
May be DIY safe · £120-350

All 35 fault codes

Code Severity Plain English
0 Low Your boiler is working correctly but currently doesn't think you want any heating or hot water turned on.
1 High Your boiler is failing to complete its initial safety check of the air fan before starting the ignition process.
2 High Your boiler is trying to start but cannot successfully light the gas to create a flame.
3 High Your boiler is struggling to light or cannot detect a flame while trying to provide central heating.
4 High Your boiler is struggling to light or keep a flame going when you try to use your hot water.
400 High Your boiler's internal computer has encountered a critical electronic error and can no longer control the heating or hot water safely.
401 High Your boiler's internal computer has suffered an electronic failure and can no longer communicate with the rest of the system.
403 High Your boiler's internal computer has encountered a critical electronic malfunction and can no longer control the heating system safely.
404 High Your boiler's electronic brain has encountered a permanent memory error and has shut down the system as a safety precaution.
405 High Your boiler's internal computer has suffered a technical failure and can no longer control the heating process safely.
406 High Your boiler has experienced a direct failure of its main internal computer brain and cannot control the heating or hot water safely.
407 High Your boiler's internal computer has suffered a technical failure and is unable to control the heating or hot water operations.
410 High Your boiler’s internal computer has encountered a critical error and needs a professional to reset or replace the main control board.
411 High Your boiler's internal computer has suffered a technical failure and is unable to control the heating process.
413 High Your boiler's computer control board has developed an internal electrical fault and can no longer communicate with the rest of the system.
414 High Your boiler’s internal computer has suffered a serious electronic malfunction and is unable to control the heating system safely.
415 High Your boiler's internal computer has suffered a technical failure and is unable to communicate with its own components.
416 High Your boiler’s main computer brain has experienced a critical electronic failure and can no longer control the heating system.
417 High Your boiler's internal computer brain has developed an electrical fault and can no longer control the heating safely.
424 High Your boiler has detected that the temperature sensors monitoring the water going out and coming back are swapped or wired incorrectly, preventing it from heating safely.
426 High Your boiler is not receiving enough gas to stay lit safely, which is preventing it from heating your home or water.
430 High Your boiler has sensed that the temperature is rising too quickly or unevenly, which usually means water isn't flowing through the system as it should.
431 High Your boiler has detected a fault with a temperature sensor that is preventing it from heating your water safely.
432 High Your boiler has detected a faulty internal temperature sensor that is preventing the system from heating up safely.
436 High Your boiler has stopped working because a sensor that monitors the water temperature has disconnected or broken.
437 High Your boiler has stopped working because a temperature sensor has lost its connection or has developed a fault.
441 High Your boiler’s internal computer has encountered a critical electronic error and can no longer control the heating system safely.
442 High Your boiler's internal computer brain has developed a critical electronic fault and can no longer control the heating system safely.
460 High Your boiler's computer control board has developed an internal electrical fault and is unable to communicate properly with the system.
528 High Your boiler has stopped working because the internal fan is not spinning correctly, meaning the system cannot safely clear away waste gases.
529 High Your boiler has identified a problem with the fan motor, meaning it cannot safely clear waste gases and has shut down to prevent damage.
912 High Your boiler has detected a problem with either its internal water pressure or its temperature safety sensors, which has caused the system to stop working.
918 High Your boiler has shut down because it has detected that the water inside is getting too hot, which is often caused by a blockage or a pump failure.
919 High Your boiler has shut down because the water returning to the unit is too hot, typically meaning the heat isn't being distributed around your home properly.
925 High Your boiler is overheating because the water inside is heating up too quickly, often caused by a lack of circulation or a blockage.

Ideal Response SE is discontinued — time for a new one?

Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.

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