My sister in law tried to install a new thermostat and has somehow messed something up. I went over and her Trane air handler will not run. I found that the glass bus fuse beside the transformer was blown. I replaced the fuse and I still get nothing except the hum from the transformer. I...

Opened panel and manualy closed left contact and it turned slow then clicked off. Then pushed both contacts and it turned slow again and clicked off again,Smelled smoke might be from heating coil not sure. Any info. Would help

My trane air heat pump handler motor doesn't come on. It has a buzz and ocillates back and forth trying to start it seems. This happens when in A/C, Heat or fan only mode. Heat pump cool and heat work fine. Checking the trouble shoot guide it seems it is likely the control module transformer but I...

Last year I had a new 5 ton Trane XR-13 external unit installed but did not replace the air handler inside. I want to do that now since it is 15 years old and has had mechanical problems lately. A variable-speed air handler would cost about $800 more than a non-variable but seems like a good deal...

We recently purchased a Trane 16Xi with a Trane 4TEE variable speed air handler. The air handler has been installed upside down. Is this right? At 75 degrees the compressor is coming on for 10 minutes. shutting down for 20 minutes. The humidity in the house is running 57% to 61%. Outside...