Choose your product type Common number model plates Common model number plates View sample model numbers by selecting your product brand Window Air Conditioner: Running but not cooling If the window air conditioner's compressor and fans are running but the air conditioner isn't cooling, possible causes include a failed compressor or the lack of refrigerant due to a leak in the sealed system. If the compressor isn't running but the fans work, the start relay or compressor might have failed. A defective electronic control board or control thermostat could prevent the window air conditioner from cooling. See the repairs listed below for help with correcting this problem. Featured Articles and Videos How to Determine the Right Size Window Air Conditioner Troubleshooting a Leaking Room Air Conditioner How to Deice a Window Air Conditioner Video These repairs may help solve your Window Air Conditioner problem: Replace the window air conditioner compressor

The compressor is a pump that compresses the refrigerant—Freon—that’s sealed in the window air conditioner. If the compressor doesn’t run when activated, have a refrigerator service technician replace it; by law, an EPA-licensed technician must do this repair because it involves Freon.home ac repair dallas For manuals, repair guides, and specific part recommendations, enter your model number.window ac unit fan motor Help me find my model numberair handling unit filter manufacturers Replace the window air conditioner control thermostat Some window air conditioners have an electro-mechanical thermostat instead of an electronic control board to control the on/off cycling of the compressor and fans. Replace the thermostat if it fails to control the compressor and fans properly.

Replace the window air conditioner electronic control board The electronic control board regulates the compressor, evaporator fan and condenser fan in the window air conditioner. If the electronic control board doesn’t activate those components properly, replace the control board. How to Replace an Electronic Control Board in a Window Air Conditioner Replace the window air conditioner evaporator thermistor The evaporator thermistor is a temperature sensor that is mounted on the evaporator. It monitors the temperature of the evaporator to detect excessive frost on the evaporator. The thermistor communicates that temperature to the electronic control board through a wire harness connection. If the evaporator frosts up, the electronic control board will detect the frost according to the temperature communicated through the thermistor. If the thermistor is defective, the electronic control will not properly detect and eliminate the frost. Replace the evaporator thermistor if it doesn’t properly detect the evaporator temperature.

Not the symptom or solution you were looking for? Check out these other solutions Water leaking inside house Evaporator fins are iced up Compressor humming but not working Enter your zip code Sears PartsDirect uses your location to provide local availability in your area. FREE Standard Shipping on orders of $90 or more Purchase requirement calculated before taxes and shipping charges and after other discounts have been applied and must be made in a single transaction. Cannot be applied to previous purchases and cannot be redeemed for cash. Valid for standard ground shipping within the continental United States and not valid for shipments to Alaska, Hawaii, Puerto Rico, Guam and the US Virgin Islands. Offer valid for online purchases only. In an event of a return, coupon savings may be deducted from your refund. Discount will be automatically applied during check-out. Sears Holdings reserves the right to terminate or modify this offer at any time for failure to comply with its terms and/or due to any operational malfunction of the software, hardware or equipment required to process this offer.

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