BoilerFaultCodes.com

Ideal Classic M3050 M5080 Fault Codes

Regular Natural Gas 14.6-23.4 kW 1994-2003 Discontinued
GC Numbers: 41-392-1241-392-13

Replaced by: Classic SE

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

H
Your boiler has paused operation because it has detected a specific internal fault which it is displaying through a series of alternating flashes.
May be DIY safe · £120-350
H n
Your boiler has detected that the electrical wiring coming into the unit is swapped or incorrectly connected, preventing it from starting safely.
Gas Safe engineer required · £80-160
H1
Your boiler has detected that the water leaving the unit is getting too hot, causing it to shut down to prevent damage.
May be DIY safe · £120-280

All 13 fault codes

Code Severity Plain English
0 Low Your boiler is working correctly and is simply sitting in standby mode because your thermostat or hot water timer is currently turned off.
c Low Your boiler is working normally and is currently heating your radiators.
H High Your boiler has paused operation because it has detected a specific internal fault which it is displaying through a series of alternating flashes.
H n High Your boiler has detected that the electrical wiring coming into the unit is swapped or incorrectly connected, preventing it from starting safely.
H1 High Your boiler has detected that the water leaving the unit is getting too hot, causing it to shut down to prevent damage.
HE High Your boiler's main control computer has developed an internal electrical fault and can no longer manage the heating process safely.
HF High Your boiler has detected a signal for a flame when there shouldn't be one, or there is an electrical fault within the ignition system preventing it from starting safely.
L High Your boiler has stopped working because it has detected a specific internal fault and has safely shut itself down as a precaution.
L8 High Your boiler has detected a problem with its internal fan or the power supply to it, preventing the unit from starting safely.
LA High Your boiler has become too hot and has shut itself down as a safety precaution to prevent damage.
LE High Your boiler’s internal computer has encountered a critical failure and can no longer control the heating system safely.
LF High Your boiler is failing to ignite and has locked itself out for safety after several unsuccessful attempts to start.
o Low Your boiler is currently sitting in standby mode because it hasn't been told to turn on by your thermostat or timer.

Ideal Classic M3050 M5080 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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