hi can anyone help me please i have a woscester 24i combi on lpg the problem i have is that the fan is contantly running and the central heating will not work.The boiler will fire up on domestic hot water but not on central heating i have tried a new thermister and all so a new pcb open to any ideas
woscester 24i fan keeps running
- Thread starter wozza191
- Start date
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S
stumpydick
was the dhw sensor replaced? the fan runs on if the dhw temp is sensed to be above 70 centigrade
S
stumpydick
also check dhw flow switch is not constantly calling.
hi yes the dhw sensor was also replaced and the flow switch is ok
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S
stumpydick
is there 230v at pump when ch selected ? pump does not run when hw being drawn. except for short burst to dump heat into ch pipework.
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