BoilerFaultCodes.com

Ideal Elise H Fault Codes

Regular Natural Gas 15-24 kW 2013-2018 Discontinued
GC Numbers: 41-750-7041-750-7141-750-7241-750-7341-750-74

Replaced by: Logic Heat H

The fault code is already on your display

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

All 22 fault codes

Code Severity Plain English
C Low Your boiler is operating normally and is currently busy providing heat to your radiators or hot water to your taps.
H n High Your boiler has likely detected a persistent internal fault or an ignition failure and needs to be reset manually to try and clear the error.
H......F........ High Your boiler has detected an electrical fault with the sensor that confirms the flame is lit, preventing it from firing up for your safety.
H......n........ High Your boiler has detected that the electrical wiring coming from your home's power supply is connected the wrong way around.
H.....1..... High Your boiler has detected an issue with the sensor that monitors the temperature of the water leaving the unit, preventing it from heating correctly.
H.....4...... High Your boiler has detected that a safety sensor in the exhaust pipe is reporting an incorrect temperature reading or has developed a fault.
H1 High Your boiler has detected that the water pressure is too low, preventing it from heating your home safely.
H4 High Your boiler has detected an issue with the electrical circuit that controls the internal gas valve, meaning it cannot ignite for safety reasons.
H9 High Your boiler has detected an issue with the heat exchanger's temperature sensors, causing the system to lock out for safety.
HA High Your boiler has developed a communication or hardware circuit error that has caused it to stop providing both heating and hot water.
HE High Your boiler's computer control board has encountered an internal software or hardware malfunction, preventing it from managing the heating system safely.
HF High Your boiler has failed to ignite properly after several attempts, which usually means the gas supply is interrupted or there is a problem with the ignition system.
L.......A........ High Your boiler has shut down because it has detected it is getting too hot, usually due to a lack of water circulation or a blockage in the system.
L.....E...... or H.....E...... High Your boiler’s internal computer has encountered an electronic glitch or hardware failure and cannot operate safely.
L....8..... High Your boiler has stopped working because the fan that removes exhaust fumes is not spinning correctly or communicating with the system.
L8 High Your boiler has detected an internal communication error between its main control boards, causing it to stop running for safety.
L9 High Your boiler has likely overheated, causing it to shut down to prevent damage.
LA High Your boiler has likely detected a problem with its internal control board or wiring and has locked itself out for safety.
LA/HA High Your boiler has become too hot and has temporarily locked itself to prevent damage until it cools down sufficiently.
LE High Your boiler’s internal computer has encountered a critical communication error and can no longer control the heating process safely.
LF High Your boiler has tried to ignite three times but failed, meaning it has locked itself out for safety and you will have no heating or hot water.
O Low Your boiler is working perfectly and is currently in standby mode because it has reached the desired temperature or your thermostat is turned down.

Ideal Elise H 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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