Ideal Logic System IE Gen 2 fault L0C
Repeated restart lockout
Gas boilerWhat it means
If the Restart procedure occurs 5 times within 15 minutes following an L02 lockout, the boiler displays fault code L0C, indicating a persistent ignition failure requiring further investigation.
Likely causes
- Repeated ignition failures
- Restart attempted 5 times within 15 minutes
Where to start
- Count number of restarts within 15 minute window
- Investigate underlying cause of repeated ignition failure rather than continuing to restart
The full answer, free
- How to put it right, step by step
- The manual page for this fault (page 31), 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 Gen 2. Check the model on the data plate before you order parts.
Other Ideal Logic System IE Gen 2 fault codes
- F02Flame loss
- F03Fan fault
- F04Flow thermistor fault
- F05Return thermistor fault
- F06Outside sensor fault
- F09PCB 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
- L01Flow temperature overheat lockout
- L04Flow thermistor fault
- L05Return thermistor fault
- L06False flame lockout (flame on before gas valve on)
- L0DIgnition lockout: blocked flue/condensate