BoilerFaultCodesWhat the manual says
Manufacturer manualIndicates that the live and neutral electrical connections are reversed.
From this model's manual
This code was read directly from the manufacturer service manual for this model.
Engineer required
This is a emergency 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 GreenLights: Flash Flash OnLights: 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