What the manual says
Manufacturer manualThe overheat indicator light will be illuminated if the appliance needs resetting. Shuts down the appliance should the system overheat.
From this model's manual
Verified against the Baxi/Baxi Solo Pf 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 30 fault codes on the Solo PF
Seeing a different code? Every code this model can display, in one place.
Boiler OnBoiler On (Orange LED)Boiler On light onBurner LED GreenBurner OnBurner On light offE01E03E24E26E26 186E26 219E26 221Fan OnFan/Flue LED GreenIndicator light inside box litLockoutLockout lightLockout light onOverheat (Red LED)Overheat indicator lightOverheat Neon IlluminationPeripheral / Pump LED GreenPilot OnPilot On lightPilot On light onPilot/Ignition LED GreenPower LED GreenPower On (Green LED)