Ideal Logic System IE fault F0D
Low water flow / low water pressure
Gas boilerWhat it means
Boiler has detected low water pressure or low water flow in the CH system.
Likely causes
- Pump not rotating freely
- Isolation valves closed
- Pump not operating
- Pump not operating (wiring fault or pump failure)
Where to start
- Verify all isolation, system filter and radiator valves are open
- Check pump rotates freely and re-measure differential
- Check if isolation valves are open
The full answer, free
- 14 more checks in order
- The readings and component tests from the manual
- How to put it right, step by step
- The manual page for this fault (page 51), 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
- 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
- F4Control/no flow thermistor fault
- F8PCB unconfigured/faulty or gas valve short circuit
- F9PCB unconfigured/faulty or gas valve short circuit
- FUDifferential greater than 50°C
- L02Ignition lockout after 5 attempts
- L04Flow thermistor fault
- L05Return thermistor fault
- L06False flame lockout / flame on before gas valve on
- L0CRepeated restart lockout
- L0DIgnition lockout: blocked flue/condensate
- L2Ignition lockout after 5 failed attempts
- L4Control/no flow thermistor fault