Price Match Guarantee
Transformer HT01BD209
This part HT01BD209 is compatible with:
- Product Type:
- Air Conditioner, Central Air Conditioner, Furnace, Humidifier
- Brands:
- Bryant, Carrier, Payne
Related Articles & Videos
Transformer Customer Reviews
Common Problems Fixed by the Transformer
Based on customer reports and repair data, this part commonly fixes these issues:
Central air conditioner won't turn on
Furnace not turning on
Humidifier not working
Humidifier not getting water
Humidifier drum won't turn
Air handler not heating
Air handler not cooling properly
Heat pump not cooling
Heat pump not heating
Heat pump won't turn on
Furnace wall thermostat not working properly
Air handler wall thermostat not working properly
Air conditioner wall thermostat not working properly
Central air conditioner wall thermostat not working properly
Heat pump wall thermostat not working properly
Furnace not heating
Central air conditioner not cooling properly
About the Transformer
The furnace control board sends a low voltage signal of 24 volts to the thermostat. When the themostat cooling contacts close, a 24 volt signal is sent to the contactor coil, closing the high voltage circuit and sending power to the condensing unit components. Some furnaces have a separate transformer for the 24 volt circuit, so if the contactor is not receiving the proper voltage when the thermostat cooling contacts are closed, it's likely this transformer has failed and the component will need to be replaced.
Shop by Brands
Repair Help by Brands and Product Type
Alternative Part Number(s)
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic