Questions & Answers for: thermostat screen went blank

Carrier thermidistat screen went blank Turned on the air-conditioning; it was working then the screen went blank Check the battery in the thermostat it is dead!! Should be 2 AA batterys!

...went pop and I have nothing tried the reset still a blank screen its nearly 3 years old what can I do checked all the electric in the house everything is ok Hello Bad news something in 6400unit has ...

...screen went blank on my thermostat. How can I get it back on? Normally the digital thermostat required a power source to function, please check the connect at the c- terminal if your thermostat is ...

screen went blank and there doesn't seem a place to replace battery There doesn't seem to be a battery in that model. Supposed to be permanent memory. You can download a PDF manual at this site if you

...thermostat (Honeywell RTH230B) worked correctly for months then the screen went blank. Changed batteries, screen still blank. Go to honeywell.com Under red welcome sign Bottom red highlighted box ...

...thermostat screen went blank. Is there a reset button? There is no reset, and this always seems silly but have ou replaced the batteries? I've been to too many service calls for thermostat

...went blank and replaced batteries still blank screen. I discovered that tab on bottom of battery connect was flat and not letting top end of aa batteries make connection so I put aluminum foil piece ...

thermostat screen went blank and no heat anymore to my heater? According to the user manual, if the display battery goes dead, it will shut down the heater unit. Take a look at this user manual: http:

...thermostat screen goes blank - no numbers, just the lines dividing the three areas? Pushing reset does nothing. The screen went blank as I was pushing the lower temp. button. Pop the cover off and ...

screen was still blank. Tried several new batteries and no readout. So I took the batteries out of the other thermostat and tried them in the first unit---same result--no readout. When I put batteries