Transformer, 120 volt primary 24 volt secondary 40 va
Grid is 1 inch square
  Transformer S1-02530889000
  Transformer S1-02530889000
  Transformer S1-02530889000
Manufacturer Part

Transformer S1-02530889000

Genuine OEM Part # S1-02530889000RC Item # 2332747Alternative Part Number(s)
Manufacturer Part
Transformer, 120 volt primary 24 volt secondary 40 va
Grid is 1 inch square
  Transformer S1-02530889000
  Transformer S1-02530889000
  Transformer S1-02530889000
$67.19
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Transformer, 120 volt primary 24 volt secondary 40 va
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$67.19
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This part S1-02530889000 is compatible with:

Product Type:
Central Air Conditioner, Furnace
Brands:
York, Coleman, Luxaire

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Frequently Bought with Transformer
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S1-03103010000 Control Board

Transformer Customer Reviews

Common Problems Fixed by the Transformer

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

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.

Alternative Part Number(s)

Replaces Part Number S1-02519405700
Replaces Part Number S1-02519405000
Replaces Part Number S1-02419405000
Replaces Part Number S1-02628955000