Medium
63 on Sime Planet Super 4 WM

Your boiler's settings have been accidentally locked by the internal software, preventing it from functioning normally until the programming is reset.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Final user level programming block

From this model's manual
Verified against the Sime Planet Super 4 Wm installation & service manual, page 14.
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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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