Power systems with this genuine OEM transformer, part number TRR01104, compatible with select Trane Humidifier, Packaged Unit/RTU, Heat Pump, or Air Handler.
Grid is 1 inch square
TRR01104 Trane Transformer
Manufacturer Part

TRR01104 Trane Transformer

Genuine OEM Part # TRR01104Alternative Part Number(s)
Manufacturer Part
Power systems with this genuine OEM transformer, part number TRR01104, compatible with select Trane Humidifier, Packaged Unit/RTU, Heat Pump, or Air Handler.
Grid is 1 inch square
TRR01104 Trane Transformer
$71.69
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Power systems with this genuine OEM transformer, part number TRR01104, compatible with select Trane Humidifier, Packaged Unit/RTU, Heat Pump, or Air Handler.
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$71.69
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This part TRR01104 is compatible with:

Product Type:
Air Handler, Packaged Unit/RTU

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Frequently Bought with Transformer
242252702 Water Inlet Valve
5304532207 Float

Transformer Customer Reviews

Common Problems Fixed by the Transformer

Based on customer reports and repair data, this part commonly fixes these issues:

Likely

Humidifier not working

Likely

Humidifier not getting water

Likely

Humidifier drum won't turn

Possible

Air handler not heating

Possible

Air handler not cooling properly

Possible

Heat pump not cooling

Possible

Heat pump not heating

Possible

Heat pump won't turn on

Possible

Air handler wall thermostat not working properly

Possible

Heat pump wall thermostat not working properly

About the Transformer

Some furnaces have a separate transformer to provide 24 volts to the humidifier. If the water inlet valve is not receiving 24 volts and the contacts in the humidistat are closing as expected, it's likely the transformer has failed and the component will need to be replaced.

Alternative Part Number(s)

Replaces Part Number TRR01558