Delay relay
Grid is 1 inch square
Lennox Relay 18Y93
Lennox Relay 18Y93
Manufacturer Part

Lennox Relay 18Y93

Genuine OEM Part # 18Y93RC Item # 4979252Alternative Part Number(s)
Manufacturer Part
Delay relay
Grid is 1 inch square
Lennox Relay 18Y93
Lennox Relay 18Y93
$111.84
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Delay relay
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$111.84
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This part 18Y93 is compatible with:

Product Type:
Heat Pump, Packaged Unit/RTU
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

Heat pump won't turn off

Possible

Heat pump not heating

Possible

Heat pump won't turn on

Possible

Heat pump compressor won't run

About the Relay

The relay is an electromechanical switch used to control components in the unit. If the relay contacts are stuck closed certain components may continue to receive power even when the heat pump is turned off.

Popular models

Alternative Part Number(s)

Replaces Part Number 27L43
Replaces Part Number 28G2701
Replaces Part Number 78K59
Replaces Part Number LB-66433A
Replaces Part Number LB-91257A
Replaces Part Number LB-91256A
Replaces Part Number 11K57
Replaces Part Number 28G27
Replaces Part Number 56J64
Replaces Part Number 79K29
Replaces Part Number LB-91441A