Low
175 on Sime Dewy 30/130 HE FS

Your boiler's internal digital clock settings are currently corrupted or have been reset, preventing the unit from following your programmed heating schedule.

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

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From this model's manual
Verified against the Sime Dewy 30 130 He Fs installation & service manual, page 38.
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

Locate the digital control panel on your boiler.Access the clock or timer settings menu.Re-program the current time and your desired heating schedule.

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