Recent content by Mike999999

I have a Danfoss SET 1E time switch. Recently the heating did not come on and when I looked at the time switch the LED screen was blank. The power supply to the time switch was present. I ordered and fitted a new time switch which worked perfectly for 5 months. Now I have the same issue again...

This morning my boiler was not working with the red LED flashing and error code d2. I have attempted a reset (turning the mode selector switch to reset for 10 seconds then back to original position but the error code d2 still shows. I have also tried switching off at the mains for 5 mins...