**"mcgmari":* switched on emergency heat on thermostat. Noticed later that the heat did not come on. Switched thermostat back to regular "heat" mode. Still did not come on. Replaced thermostat with same model from another level in home....and heat did not come on.
When the heat did not come on with another thermostat, then took off panel of Air Handler and discovered a burnt wiring problem. The blue wire that was connected to a thick major black wire had burnt and melted off the plastic connector. This Air Handler is only 5 months old...Amana ARUF 3642 16CA......could this thermostat (honeywell chronotherm III....14 years of age...) have caused this to burn and melt...just because I inadvertantly switched thermostat to Emergency ****/quote:*
I would have called for warranty service , before I changed Thermostat. But, I would still call and ask WHY wires are burn't in air handler...Amana doesn't usually have issues unless wired improperly..