Is the unit reading the correct ambient temperature?
The unit works by averaging temperatures so it doesnt just switch on and off its call for heat at pre-determined times, if left dos the thermostat continue to call for heat, so if it was set to 20 the room would eventually get to 30, or does it stop at say 25?
Many thanks, ***** ***** 'early start' function enabled, its set by a switch on the rear of the control panel
OK, so this is a new fault, its unlikely to be a config issue.
Does the fault occur when on automatic and manual?
The fact it looks to be reading the correct ambient temp, would suggest the control board is faulty.
If it was the sensor I would expect to have seen it read constantly 26 degrees.
So its looking like you need to replace the control panel.
Let me double check they may have a different connector.
Yes it should fit without the need to change the back plate, ive seen in on amazon for under £50 here.
No problem, so I can close the case please rate the service received.