Ravenheat 820/20 not firing

Joined
3 Oct 2005
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Location
Stirlingshire
Country
United Kingdom
Hello
My boiler will not fire up. The pilot is on, and the fan starts when heating is put on or water is called for but the boiler does not fire up. There is voltage at the small coil, 28vdc, and there is voltage at the gas valve, 240vac. The airflow switch is working and there is pressure in the system.

Any clues??
 
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Off the top of my head, if there's voltage at the gas valve, but no gas coming through, either the gas supply has been interrupted or the valve is faulty. But you need to check through the fault finding section of the manual to confirm this. Only a Registered Gas Installer should carry out work on the gas train.
 

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