Name: Control Board
Brand: Lennox
SKU: i2723639
Price: 61.92 USD
Availability: InStock

Dual Run Capacitor

Compressor run capacitor, 120 volts 15 mfd.

Run Capacitor

Furnace flame sensor. The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, the furnace may not heat.

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Furnace control board. The control board regulates the supply of power to the furnace components.

Control Board

You need Contactor HN51KC024 if you're having trouble with the compressor or fan motor on your air conditioner, furnace, heat pump, or air handler. This genuine OEM single-pole, 24-volt coil contactor has a full load amps (FLA) rating of 30 amps and a locked rotor amps (LRA) rating of 150 amps.

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The Frigidaire Oven Burner Igniter 5303935066 is a high-quality replacement part that ignites the gas to light the oven burner. It includes 2 ceramic wire connectors and replaces multiple part numbers

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image

Heat pump not cooling

If the outside unit contactor is not receiving 24 volts or power is not getting to the air handler blower motor, a possible cause is a defective control board. While this is not a common problem, if all other potentially faulty components are working properly, the control board should be replaced.

Heat pump not heating

If the blower won't run, a likely cause is a defective relay or other component on the furnace or air handler control board. If power is not getting to the motor, and the run capacitor (if applicable) is functioning properly, the control board should be replaced.

Heat pump won't turn on

If the heat pump unit contactor is not receiving 24 volts or power is not getting to the inside blower motor, a possible cause is a defective heat pump control board. While this is not a common problem, if all other potentially faulty components are working properly, the control board should be replaced.

Heat pump compressor won't run

If the heat pump unit contactor is not receiving 24 volts or power is not getting to the inside blower motor, a possible cause is a defective furnace or air handler control board. While this is not a common problem, if all other potentially faulty components are working properly, the control board should be replaced.

Heat pump won't turn off

If the heat pump won't turn off, a possible cause is a shorted component on the heat pump control board. While this is not a common problem, if all other potentially faulty components are working properly, the control board should be replaced.

Heat pump is frequently cycling/short cycling

The control board regulates the power supply to all of the components of the furnace or air handler and heat pump. If the control board fails, it might not send voltage to parts of the system, causing a loss of heat or cooling and frequent cycling.


Heat pump - home's humidity is too high

	The control board regulates the voltage to the compressor and the fan motor. If the control board fails, some components will not function properly or will not work at all. Control boards are often misdiagnosed; make sure to check more commonly defective parts first before replacing the control board.

Heat pump circuit breaker keeps tripping

The control board regulates the power supply to all of the components of the heat pump. If the control board shorts out it can trip the circuit breaker. A shorted control board will usually have burn marks or smell burnt and will need to be replaced.


Heat pump wall thermostat not working properly

The control board regulates the power supply to all of the components in the system. If the control board fails, it might not send voltage to the thermostat, leaving the thermostat inoperable.


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This free troubleshooting video shows quick maintenance tips for taking care of your Gree PTAC Unit. If you're unable to find the information you need on our website, we suggest that you use a search online to find a reliable online repair forum. It's likely that your question has already been answered there. We also recommend contacting your product's manufacturer or calling a local repair technician. And don't forget to like and comment on this video, and subscribe to our channel!

PTAC Unit Maintenance Tips

Control-Board

Lennox 81L75 Packaged Unit/RTU Control Board | Repair Clinic

Lennox Control Board 81L75

This part 81L75 is compatible with:

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