We have a Salus Programmable Room Thermostat Model No RT500RF
Currently the afternoon / evening setting is from 4.30pm to 9pm. Every evening at 8pm the room temperature reading (which can be seen on the screen) switches itself to match / equal the programmed temperature, irrespective of what the room temperature actually is. The result is that in believing the room has reached the programmed temperature the central heating shuts down.
From what I understand of the manual the reset button merely sets it back to factory settings i.e. deletes my programmed settings. But that would not appear to address the problem of switching temperatures.
Any ideas on corrective action would be welcomed.
Thanks you.