I've raised this issue in other forums. I have a high efficiency furnace that has worked flawlessly for the last four years (the house was built in 2000). This year we had to have the circuit board replaced. After that there was a problem with the blower, i.e. it wasn't shutting down after the...

My gas furnace doesn't fire-up although I hear clicking inside every time I attempt to toggle the switch bypassing the thermostat. Is it SAFE to short the LIMIT SWITCH to check it that's the problem. Because I remember the furnace was left for several hours running and then all of a sudden it just...

I have Bryant upright furnace (Model 394GAW048100). Furnce runs fine for the first 4 or minutes in a cycle and then gas is cut automatically while the pilot is still on. After a few seconds, the gas again comes on and Furnace works fine for about 30 seconds, again gas is cut and so on. I changed...

HVAC1000. Just to make sure on the switch.What I'm looking at is a two stack six wire switch.Does that sound right?

Can the thermostat on a limit switch be bad while the rest of the switch is OK?My blower fan works manually but will not function on "auto".