Name: Main Control Board
Brand: Carrier
SKU: i2977284
Price: 451.16 USD
Availability: OutOfStock

Dual Run Capacitor

Compressor run capacitor, 120 volts 15 mfd.

Run Capacitor

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.

Contactor

1/6 HP 208-230Volts 60Hertz 1.1Amps 810RPM Single Speed Closed Enclosure 48Y Frame Single Phase CW Rotation 2.5" Shaft

Condenser Fan Motor

Furnace draft inducer motor cooling fan blade and clip. You may have to cut the old clip off to remove the fan blade.

Fan Blade

Dryer blower wheel. Used on 29 inch Whirlpool built models with lint filter on top. To remove the blower wheel, unscrew the blower wheel  clockwise off the motor shaft.

Blower Wheel

Dryer thermistor. This thermistor should read approximately 11.9K Ohms of resistance at 70 degrees Fahrenheit (21’ Celsius). If the thermistor is defective, it may prolong or shorten the drying time or cause a fault code. A defective thermistor is not responsible for a dryer not heating.

Thermistor

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

Control Board

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.

Flame Sensor

Relay

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Central air conditioner not cooling properly

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

Central air conditioner won't turn off

If the furnace's main control board has a short, it may be providing continuous voltage to the central air condensing unit preventing it from turning off. Inspect the control board for any damage and replace if necessary.

Central air conditioner - home's humidity is too high

The main 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.

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Central air conditioner not cooling? This video provides information on how to troubleshoot a central air conditioner and the most likely defective parts associated with this problem. Commonly replaced central air parts: Capacitor Compressor Fan Blade Fan Motor Contactor Fuse The information provided in this air conditioner troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York

Central Air Conditioner Not Cooling — Central Air Conditioner Troubleshooting

Central air conditioner fan motor not running? This video provides information on how to troubleshoot a central air conditioner and the most likely defective parts associated with this problem. Commonly replaced central air parts: Capacitor Compressor Fan Blade Fan Motor Contactor Fuse The information provided in this air conditioner troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York

Central Air Conditioner Fan Motor Not Running — Central Air Conditioner Troubleshooting

Central air conditioner noisy? This video provides information on how to troubleshoot a central air conditioner and the most likely defective parts associated with this problem. Commonly replaced central air parts: Capacitor Compressor Fan Blade Fan Motor Contactor Fuse The information provided in this air conditioner troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York

Central Air Conditioner Is Noisy — Central Air Conditioner Troubleshooting

Central air conditioner not running? This video provides information on how to troubleshoot a central air conditioner and the most likely defective parts associated with this problem. Commonly replaced central air parts: Capacitor Compressor Fan Blade Fan Motor Contactor Fuse The information provided in this air conditioner troubleshooting video is applicable to all brands: Air Bear Trion, Amana, Arcoaire, Broan, Bryant, Carrier, Coleman, Comfortmaker, DuroGuard, Fasco, Frigidaire, Garrison, Gibson, Goodman, Grandaire, Heil, Honeywell, ICM, ICP, Intertherm, Kelvinator, Kenmore, Lennox, Luxaire, Mammoth, Mars, Maytag, Medallion, Miller, Nordyne, Nutone, Payne, Philco, Rheem, Ruud, Tappan, Tempstar, Thermal Zone, Trane, WeatherKing, Westinghouse, White Rogers, York

Central Air Conditioner Not Running — Central Air Conditioner Troubleshooting

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

Main-Control-Board

HK46ER255 Central Air Conditioner Main Control Board | Repair Clinic

Central Air Conditioner Main Control Board HK46ER255

This part HK46ER255 is compatible with:

Related Articles & Videos

Main Control Board Customer Reviews

Common Problems Fixed by the Main Control Board

Central air conditioner not cooling properly

Central air conditioner won't turn off

Central air conditioner - home's humidity is too high

About the Main Control Board

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