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Mend Vaillant Vcw Gb

vaillant vcw gb 282gh?

works ok for centralheating won't fire up for hot water, all fuses ok reset button in. thinking maybe something to do with diverter valve switch

bike man
May 2015
VaillantHeating, Home Heating SystemsVaillant Vcw Gb
Most likely a worn diaphragm in the water valve.

To test the electrics side, there is a servo valve to the right of the electrical box, above the water valve. On the back of the valve there is an armature, push this down, if the boiler fires up, it confirms the diaphragm is worn and needs replacing.

Helper
May 2015
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