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Mend Vaillant VC GB 242EH Home Heating Systems

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Mend Vaillant VC GB 242EH Advice Test Turned

Advice?

With the gas service valve isolated, the gas test holds. Once the valve is turned on it drops even though the controls aren’t calling for heat/ hot water. Can the main gas valve be locked open?
It’s an old VC GB 242EH GC-No.41-044-07
Thank you.

Phil Billingham
May 2023
VaillantVaillant VC GB 242EHHeating, Home Heating SystemsAdvice Test Turned
It's unlawful to work on gas appliances unless you are Gas Safe certified. Get a competent engineer in.

Dghu
May 2023

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