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why has my wireless time clock stopped responding?
Ideal Classic no heating but have hot water?
Mid position valve?
Hot water but no central heating?
isar he30?
heating, Oil boiler not running?
Converting to Y Plan system?
Replacing LP112 Programmer?
Honeywell ST7100 programmer goes blank when RUN selected?
dmestic hot water near boiling point, howto adjust temperature?
How do I reprogram my ideal bolier rf thermostat receiver?
can i fix it honeywell st1000 ?