Low
Mains light on Potterton Puma 100e

This light simply shows that your boiler is receiving electrical power and is switched on.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Indicates that the mains electricity to the boiler is on.

From this model's manual
Verified against the Potterton Puma 100e installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Ensure the fused spur switch near the boiler is turned onCheck that your main consumer unit (fuse box) hasn't trippedIf the light is off but power is on, the internal fuse may have blown

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