BoilerFaultCodes.com

Potterton Promax HE Store Fault Codes

System Natural Gas 9-24 kW 2006-2014 Discontinued
GC Numbers: 41-591-9241-591-9341-591-94

Replaced by: Promax Ultra Store

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

Most common fault codes

E20
Your boiler's temperature sensor has encountered a technical glitch, meaning the system cannot accurately monitor the heat of the water it is pumping around your radiators.
Gas Safe engineer required · £90-160
E50
Your boiler has detected a problem with the sensor that monitors the temperature of the exhaust gases, causing the system to shut down for safety.
Gas Safe engineer required · £100-180
E110
Your boiler has switched itself off because the water inside it has become too hot, which is a safety precaution to prevent damage.
May be DIY safe · £90-280

All 10 fault codes

Code Severity Plain English
E20 High Your boiler's temperature sensor has encountered a technical glitch, meaning the system cannot accurately monitor the heat of the water it is pumping around your radiators.
E28 Medium Your boiler has lost the ability to measure the temperature of your hot water, which usually means it will stop providing hot water or provide it at an inconsistent temperature.
E50 High Your boiler has detected a problem with the sensor that monitors the temperature of the exhaust gases, causing the system to shut down for safety.
E110 High Your boiler has switched itself off because the water inside it has become too hot, which is a safety precaution to prevent damage.
E119 High Your boiler has stopped working because the water pressure is too low for the system to run safely.
E125 High Your boiler is struggling to move water around the system effectively, causing it to overheat and shut down for safety.
E130 Emergency Your boiler has shut down because the exhaust gases have reached a temperature that is too high, indicating a potential blockage or a serious internal circulation issue.
E131 High Your boiler has experienced a power cut or was switched off while it was already showing a different fault, causing it to lock itself out for safety.
E133 High Your boiler is failing to light the gas burner, meaning it cannot provide heating or hot water until the issue is resolved.
E160 High Your boiler has stopped working because the fan that clears away waste gases is not spinning correctly or communicating with the control system.

Potterton Promax HE Store 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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