nordyne furnace problems, Limit Circuit Open or External Load On "W" =1

I can't seem to find the "open high limit device" anywhere in the gas furnace (Trane XE80)... Where is it locate? On motherboard? The motherboard already been replaced about 4 yrs ago...can't be bad already, can it? Warranty?

I have a Nordyne heater which has been working great for the last 4 years. Tonight, however, the blowers are constantly operating even though the thermostat is off. The red indicator light is indicating that the limit circuit is open or there's and external load on "W". Which I think refers to the...

Hi all, Hope this makes sense and required info is present. Any help or suggestions is appreciated, thanks. Furnace brand is Nordyne, about 3 years old, cooling portion model# of unit is JS3BA-036KA. This issue started last week. The A/C still works, but now the blower portion? Doesn't shut...

HI, I am new here and am having a furnace problem. As a new homeowner I would like to take a look at this myself before just grabbing the phone books. I have a Bryant 80t furnace. Built in 2000 and has been serviced every other year. Unit is clean and in good shape. Woke up to a cold house and...

The furnace in my vacant rental property does not light. The blower runs but the igniter never glows and the gas valve does not open. The LED blinks once which means the burner limit circuit is open. How do I replace the burner limit circuit? Inside the furnace cover I found the electronic...