BoilerFaultCodesWhat the manual says
Manufacturer manualFan Lockout - Go to Fan Lockout section of the fault finding instructions.
From this model's manual
Verified against the Solo 15 He A installation & service manual.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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All 23 fault codes on the Solo 3 40 PF
Seeing a different code? Every code this model can display, in one place.
Boiler On (Orange LED)Boiler On light onBurner LED GreenBurner On light offFan/Flue LED GreenIndicator light inside box litLights: Flash Off FlashLights: Flash Off OnLights: On Off FlashLights: On Off OnLights: On On OnLockout light onOverheat (Red LED)Overheat indicator lightOverheat Neon IlluminationPeripheral / Pump LED GreenPilot On lightPilot On light onPilot/Ignition LED GreenPower LED GreenPower On (Green LED)Red neon illuminated