This morning woke up to no central heating, but the hot water had been on earlier in the morning.
I checked the programmer and it was indicating CH was on.
Went to the room thermostat and it didnt click when rotated, but then started clicking without any input.
I had a spare room thermostat, so replaced it. However when I rotated the new stat to call for heat the main boiler/CH/HW switch fuse blew.
I checked the new thermostat with a continuity check and the live and neutral continuity made and broke when the stat was rotated, so that seems to work normally.
Now I'm at a lose and would appreciate advice on what to check next. My CH/HW is a vented Y plan.
I checked the programmer and it was indicating CH was on.
Went to the room thermostat and it didnt click when rotated, but then started clicking without any input.
I had a spare room thermostat, so replaced it. However when I rotated the new stat to call for heat the main boiler/CH/HW switch fuse blew.
I checked the new thermostat with a continuity check and the live and neutral continuity made and broke when the stat was rotated, so that seems to work normally.
Now I'm at a lose and would appreciate advice on what to check next. My CH/HW is a vented Y plan.