Low
ALL 24 on Sime Murelle HE Regular

Your boiler is having trouble communicating with the temperature sensor connected to your solar water heating system.

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

solar collEctor sEnsor Error (s1)

From this model's manual
Verified against the Sime Murelle He Regular installation & service manual, page 41.
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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