Heating & Cooling - Recent Questions, Troubleshooting & Support


I would guess two possible problems - dirty thermostat contacts and many appliances are also fitted with a thermal fuse or other type of thermal cutout which might have failed.

Amana Heating &... | Answered 3 hours ago


You should look in the air handler( Where the indoor blower is located) or in the plenum (where the duct system originate at the air handler) for any dead and rotting rats. Residential central air systems are sealed (uses circulated air only) and do not use outdoor air.

Heating &... | Answered 6 hours ago


If you are not sure of your system type or if you have other questions, call us toll-free at 1-800-468-1502.
This thermostat works on 24 volt or 750 mV systems.
It will NOT work on multi-stage heat pump systems or
120/240 Volt systems. Call for help

Honeywell... | Answered 9 hours ago


since there is no model, serial, or manufacturer listed, let's look at generic process. When call for heat, there are usually a few processes, like a combustion fan and a proving switch that the fan is working. Once that is satisfied, a current is sent to the glow plug to cause it to heat. This is when you check for the correct amount of power being sent to it. And it is providing that the proving process is complete. If there is current and no heat, check the amp draw (if you have the meter to do so.) If no amp draw or if you do not have a meter that measures amps, this would be the time to Kill power to the unit, unplug or disconnect the wires to the glow plug and check for continuity or ohms resistance. If resistance is present, you need to know what is the proper amount to have. Trane usually has about 80-100 ohms on their commercial roof top units. If there is no resistance or continuity, the glow plug is bad and needs replaced.

Heating &... | Answered Yesterday

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