New Honeywell Thermostat RTH221B
#1
02-25-12, 06:19 AM
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New Honeywell Thermostat RTH221B
I purchased a Honeywell RTH221B to have a simple digital programmable thermostat instead of the old ineffiecient slider I had. I got the thermostat home and took off the old thermostat. I have only 2 wires, a red and white wire. I opened the face plate on the new honeywell therm. and put in 2 AAA batteries that are brand new. For some reason the thermostat wont show anything on the screen. I tried different batteries but still got nothing. Is it defective or am I doing something wrong? Thanks for the help.
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#2
02-25-12, 06:34 AM
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IF the batteries are installed correctly then you have a defective thermostat. I would recommend a higher quality honeywell thermostat anyway. In that paticular thermostat if the system was heating and the batteries fail the heat would not shut off.
#3
02-25-12, 06:40 AM
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thanks
thanks for the reply. The batteries are definitly installed correctly lol. I guess its defective. Do you have any recommendations for a digital thermostat that only needs two wires? Something thats not to expensive, I only have gas heat/forced hot water running through the thermostat. Thanks again.
#4
02-25-12, 08:16 AM
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I would recommend a pro series thermostat but that would need to be ordered online or at a local hvac supply house if you could get them to sell to you.
DIY stat from the box store would be a RTH6350D or better
PRO stat would be a TH6110D1021 or better
DIY stat from the box store would be a RTH6350D or better
PRO stat would be a TH6110D1021 or better
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