I have a Trane Gas Furnace, model # TUE120A96OK3, that is 6 years old. I am having an issue with it where the burners will not stay lit. I check the red LED light diagnosis, and it says that it is having an "open high limit device" error. I thought that I could possibly reset or replace this to fix...

On my Rheem XE 80 downdraft gas furnace, I'm getting intermittent heat. Getting error code of 4 blinks on the single red LED, which means "high temp limit open". The purge fan has been cleaned (it was very dirty) and the vacuum line to the vacuum switch is not plugged. Vacuum switch itselfs...

Furnace mounted horizontal in crawl space, relpaced filter and high limit swwitch and it still gives 4 flashes, ghi limit error still. Tried clearing condensate drains. Seems like high limit switch is wired in parallel with pressure switch and a switch in the area where the ignitor is. COuld any...

It's not iginting just blowing cold air. It turn on OK this morn and reach the temp set at but the blower kept running blowing cload air. The trubleshotting light flaces 4 times then pulses which means heat sensor switch open/open high limit device. What can I do?

Furnace is about 13 years old... we just replaced the ignighter in it last night because it was running through all the steps to run except ignighting. It fired right up and ran for about 7-8 hours... now it won't ignite at all (it is running through all the steps it needs to except for...