Switch power reliably with this genuine OEM relay, part number 66751, made for select Lennox Furnace, Packaged Unit/RTU, Heat Pump, Air Handler, or Central Air Conditioner. Repair Clinic provides genuine OEM durable relays.
Grid is 1 inch square
Lennox Relay 66751
Manufacturer Part

Lennox Relay 66751

Genuine OEM Part # 66751RC Item # 2719703Alternative Part Number(s)
Manufacturer Part
Switch power reliably with this genuine OEM relay, part number 66751, made for select Lennox Furnace, Packaged Unit/RTU, Heat Pump, Air Handler, or Central Air Conditioner. Repair Clinic provides genuine OEM durable relays.
Grid is 1 inch square
Lennox Relay 66751
$51.80
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Switch power reliably with this genuine OEM relay, part number 66751, made for select Lennox Furnace, Packaged Unit/RTU, Heat Pump, Air Handler, or Central Air Conditioner. Repair Clinic provides genuine OEM durable relays.
Loading stock status
$51.80

This part 66751 is compatible with:

Product Type:
Furnace, Packaged Unit/RTU, Heat Pump, Air Handler, Central Air Conditioner
Brands:
Lennox

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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:

Likely

Air handler not heating

Likely

Furnace not heating

Likely

Heat pump won't turn off

Possible

Central Air Conditioner Condenser fan motor does not run

Possible

Air handler blower not running/not turning on

Possible

Heat pump not heating

Possible

Heat pump won't turn on

Possible

Heat pump compressor won't run

Possible

Central Air Conditioner Condensing unit does not run

About the Relay

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

Alternative Part Number(s)

Replaces Part Number M-2552
Replaces Part Number P-8-1120
Replaces Part Number 37124