H9 and L9 errors?
digistat not working properly?
how often do we change the3032 battery in a digistat +2rf?
Tybox827reset?
channel plus xl model h37 timer showing 14.76 and none of the buttons are w?
Y Plan - Mid Position Valve 'fault'?
how can i check my honeywell v4073a 3-way diverter valve?
tripping out?
Can you get just a new RDJ10RF thermostat or does it have to be the set?
24i fan keeps stopping poss bearing ?
Honeywell921?
Honeywell ST7100 programmer goes blank when RUN selected?
why has my wireless time clock stopped responding?
how can i get my stat to on?
is there a way to just simply turn the temperature up?
can i fix it honeywell st1000 ?
do i need a new dt20rf programmer?
Remote timer bps242rf how does it work ??? ?
renewing batteries?
How do I reprogram my ideal bolier rf thermostat receiver?
The light on the heating is fading in and out on my lp112 control panel?
Replace a wireless termostat with a hard wired one?
Fan running continuously?
Hot water but no central heating?