Hi
Been having woes with the above boiler. Replaced DHW microswitch same problem, thermister (because? remieded it for a week) and DHW diagphram (old one was pretty distorted) but the boiler still won't disengage the DHW when demand not there. I can solve it by unclipping the DHW microswitch or by giving it a wiggle.
Having removed the microswitch I notice the activation pushrod doesn't retract when the demand ceases. I can push it back in though. It then comes back out when demand present. Microswitch working fine as I can trigger the DHW on and off by inserting a rod into the switch when disengaged.
Any ideas why pushrod not disengaging and what I should then be looking at?
Thanks
Been having woes with the above boiler. Replaced DHW microswitch same problem, thermister (because? remieded it for a week) and DHW diagphram (old one was pretty distorted) but the boiler still won't disengage the DHW when demand not there. I can solve it by unclipping the DHW microswitch or by giving it a wiggle.
Having removed the microswitch I notice the activation pushrod doesn't retract when the demand ceases. I can push it back in though. It then comes back out when demand present. Microswitch working fine as I can trigger the DHW on and off by inserting a rod into the switch when disengaged.
Any ideas why pushrod not disengaging and what I should then be looking at?
Thanks