Questions & Answers for: honeywell thermostat lights display

...honeywell t8635l thermostat- have three zones in house. Two zones are working but the main zone will not come on to heat. It has all the appropriate lights and numbers on the thermostat when I enter ...

Honeywell thermostat & there is no display...does not read room temperature & does not turn A/C on. Thanks the cover pulls off if it has a green screen then most likely takes batteries if does

...thermostat. the new honeywell has a opening for a common but says it is optional with batteries. the thermostat has 2 AA batteries to light up the display. would the wire for the X slot be wired into ...

honeywell.com Under red welcome sign Bottom red highlighted box literature/image search Type in thermostat model number Click on arrow to right Then click on the PDF files owners manual / installation

honeywell thermostat is locked in the off position Have replaced the batteries on my honeywell TH8000 series. The digital display is lighted, but will not respond. The thermostat is locked in the off ...

Honeywell 6360B thermostat unit but its not calling the boiler. The 'stat clicks on and off (& light also displays ...or not). Has he possibly mis-wired the unit ? Red=1, Blue=2, Yellow=3.

Honeywell VisionPRO IAQ thermostat. No back light. Screen shows characters, but dim. When touched, back light fails to work. All other systems function okay. this control has an option for back light ...

no display light when you change temp there is no light to see whats happening Try replacing the batterys.

Because the display unit won't light up I haven't got any hot water or heating can someone help It's a Honeywell st9400c programmer Replace

...Honeywell RTH2300B1012A digital thermostat and the display got broken and now the display just lights up green and blank. Is there still a way I can program it to a warmer temperature or do I have to ...