Transformer; 45va, 480v pri, 24v sec
Grid is 1 inch square
Trane Transformer TRR02087
Manufacturer Part

Trane Transformer TRR02087

Genuine OEM Part # TRR02087RC Item # 2594573
Manufacturer Part
Transformer; 45va, 480v pri, 24v sec
Grid is 1 inch square
Trane Transformer TRR02087
$61.18
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Transformer; 45va, 480v pri, 24v sec
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$61.18
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This part TRR02087 is compatible with:

Product Type:
Central Air Conditioner
Brands:
Trane

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Maintenance
PTAC Unit Maintenance Tips
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Transformer Customer Reviews

Common Problems Fixed by the Transformer

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

Very Likely

Central air conditioner won't turn on

Possible

Air handler not heating

Possible

Air handler not cooling properly

Possible

Air handler wall thermostat not working properly

Possible

Central air conditioner wall thermostat not working properly

Possible

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.

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