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Trane Transformer TRR00548
This part TRR00548 is compatible with:
- Product Type:
- Heat Pump, Packaged Unit/RTU
- Brands:
- Trane
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:
Heat pump not cooling
Heat pump not heating
Heat pump won't turn on
Heat pump wall thermostat not working properly
About the Transformer
The control board sends a low voltage signal of 24 volts to the contactor. When the contactor receives the signal from the control board, it closes the circuit, sending voltage to the outside unit components. Some air handlers have a separate transformer for the 24 volt circuit, so if the contactor is not receiving the proper voltage, it's likely this transformer has failed and the component will need to be replaced.
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