Medium
14 on Potterton Performa 24

Your boiler has detected that the temperature of the water flowing to your radiators has risen too quickly, causing the system to temporarily shut down as a safety precaution.

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

Central Heating Mode

From this model's manual
Verified against the Potterton Performa 24 installation & service manual, page 52.
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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