21vdc 3pdt defrost relay
Grid is 1 inch square
Rheem Central Air Conditioner Relay 42-21518-81
Manufacturer Part

Rheem Central Air Conditioner Relay 42-21518-81

Genuine OEM Part # 42-21518-81RC Item # 2637721
Manufacturer Part
21vdc 3pdt defrost relay
Grid is 1 inch square
Rheem Central Air Conditioner Relay 42-21518-81
$51.90
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21vdc 3pdt defrost relay
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$51.90
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This part 42-21518-81 is compatible with:

Product Type:
Central Air Conditioner
Brands:
Rheem

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Maintenance
PTAC Unit Maintenance Tips
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Relay Customer Reviews

Common Problems Fixed by the Relay

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

About the Relay

A relay is used to control various air conditioner components. If the relay is defective, the compressor, fan motor, or other components may not function.

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