Last seen: Aug 10, 2025
Looking at those photos I agree with @ashp-bobba. To put it another way it looks like its targeting a DHW temp of 40 not 50, which means that it wil...
There are DHW tanks with a built in heat pump that take their intake from the house, the outside world or the loft. Sometimes these are described as ...
By manual I meant constant/DHW priority, ie it should reheat once the temperature drops below (target - hysterisis). Are you certain (a) the unit has...
If it heats reliably when triggered from melcloud it points more to a control misconfiguration than to anything physical. Holiday mode, selecting m...
If the thermostat is connected to the call for heat terminal on the vaillant or myson then I suspect it's also a call for cool (IE an 'enable'). If y...
Good luck. Missing rads definitely was a problem for me. The fancoil was supposedly on 3 month delivery (but actually turned up 4 days later!) and t...
Yeah, mine did exactly the same - no error codes. The turn on/off again suggestion was (sensibly) made by my installer before he turned up - might as...
Same here as above. Where have you seen this terminology?
Mine (Vaillant) recently did something very similar, basically heating DHW for a short while after a reset, then giving up. It was accompanied by var...
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