Hi
I have a 2 year old Ideal Isar Combi Boiler which is on a Drayton Digistat RF3 Wireless System.
My probem is that when the radiators are due to turn off, the upstairs radiators are staying hot. This has only started happening within the last few months, I have changed the batteries in the Digistat control and also reset the boiler. A heating engineer has checked the boiler and says it is 'running as sweet as a nut'.
At the moment we are having to turn the boiler off at night.
Can anyone help please.
Stopwatch