High
All lights OFF on Potterton Puma 100e

Your boiler has lost all power and is completely unresponsive, meaning it is not receiving electricity to operate.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Check external wiring, mains supply, or if Fuse F1 on the Electronic Board has blown

From this model's manual
Verified against the Potterton Boiler Suprima100gcno 41 607 82 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.

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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