Intermittent failure. Shower sometimes fails to deliver hot water. If tap turned on then delivers. Suggested fault being diaphragm(?) but this does not appear in spares list for this model. Could it possibly be DHW Micro Switch? or maybe Pressure differential micro switch or low water pressure switch?
Any help appreciated!
Thanks
Jeff, I had this problem last year and it eventually gave up the ghost and the safety cut out kicked in. I called Glowworm technical support and after spending a fortune on various diagnosis from an air pressure swith to a new control panel, I decided to pay the 195 pound call out for the Heatcall engineer. The call out includes any spare parts and would have been money well spent if I had just called them out in the first place. The problem was the diverter valve which had seized with lime scale. Hope this helps.
Regards
Rob
Rob
May 2006
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