[hubin1]

Hello,

I just bought rth7000 programmable thermostat to replace the original thermostat. Unfortunately, after installing the new rth7000, it powers up and I can access the setting on the thermostat and I also hear it clicking when I try to turn on either heater or ac but nothing blows out, no fan activity. I am pretty new at this whole thing and I thought I can just buy a programmable thermostat to replace regular thermostat. Did I broke something in process or something got shorted during the installation? I check the circuit breaker but it is fine. Please help!!

Thanks!

[labman]

Do you have the red wire connected to both the RH and RC terminals? If the thermostat runs on a battery, it is possible you shorted out the control power and blew its fuse or the transformer. Does the furnace have a power on light, and is it on? There is often a fuse on the control board.

[hubin1]

Do you have the red wire connected to both the RH and RC terminals? If the thermostat runs on a battery, it is possible you shorted out the control power and blew its fuse or the transformer. Does the furnace have a power on light, and is it on? There is often a fuse on the control board.

Yes, I think you are right. I also think I short or blow something up by using the battery. I looked at the furnace and there is no power light. Is there way to reset? If it is the fuse, where can I find it?

Thanks

[labman]

Follow the thermostat wires. Usually you can see where they connect to the control board when you open the panel to replace the air filters. There should be a fuse, likely the automotive blade style, on it, perhaps near where the wires from the transformer connect. Could also be inline with the wires from the transformer.