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hot water on,no heating-ravenheat combi csi85a(t)?

We have hot water,but no heating,all the lights are on correctly on the panel

sean
February 2011
RavenheatHeating, Home Heating SystemsHot Water Combi Lights
Might be a faulty Diaphram. Had something very similar once.

sean
February 2011
check external controls are calling for heat check for voltage at the heating teminals of the pcb

brian
February 2011

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