Ideal Logic System IE fault LC
Repeated restart lockout
Gas boilerWhat it means
Displayed when the boiler restart (following an L2 lockout) occurs 5 times within 15 minutes, indicating a persistent ignition fault.
Likely causes
- Repeated underlying fault causing multiple restart attempts
- Repeated ignition failures
- Underlying fault causing repeated L2 lockouts
Where to start
- Turn power off and on to reset
- Investigate root cause of repeated ignition failures before further restarts
The full answer, free
- How to put it right, step by step
- The manual page for this fault (page 36), right under the answer
Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.
From the Ideal manual for the Logic System IE. Check the model on the data plate before you order parts.
Other Ideal Logic System IE fault codes
- F02Flame loss
- F04Flow thermistor fault
- F05Return thermistor fault
- F06Outside sensor fault
- F0DLow water flow / low water pressure
- F0TRoom thermostat fault
- F0UFlow/return differential greater than 50°C
- F10Spark generator fault
- F12Pump rotor blocked
- F13Pump fault
- F15Pump fault
- F16Gas valve fault
- F17Pump fault
- F2Flame loss
- F3Fan fault
- F4Control/no flow thermistor fault
- F5Return thermistor fault
- F6Outside sensor fault
- F8PCB unconfigured/faulty or gas valve short circuit
- F9PCB unconfigured/faulty or gas valve short circuit
- FDNo water flow
- FNFlame loss
- FUDifferential greater than 50°C
- L02Ignition lockout after 5 attempts