LWHD1200HR - LG 12000 BTU Heat / Cool Window Air Conditioner
Question about plug and wiring. I have a 250 20 amp dedicated for this unit. I am just confused as two the receptacle I purchased for it has two positives (red&black) and a green coated screw (ground) but no neutral. Maybe you can give me some insight. Thank you in advance.
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Unfortunately, 7000 Btu's will not cool 1180 sq ft. At best, it's rated for 400 sq ft, as it's only rated as a "Room Air Conditioner". To cool 1180 square feet, you'll need at least 30,000 Btu's (like in Central Air Conditioning) or 4 more window units spread out throughout the condo. It takes more Btu's to cool, than it does to heat.
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Unplug the unit and remove it from the window. Place it on a secure surface for working on it. Take off the cabinet. Remove the fan blades and disconnect the wires at their terminations. unbolt the motor and bring it, along with the make, model number and serial number, to the nearest United Refrigeration or W.W. Graingers. Have the counterman match it up for you. Reverse the above procedures, remembering to replace the capacitor.
The compressor is probably going out on either a pressure related or heat related overload. Both are a result of low refrigerant. There may be a low pressure safety swich that protects the compressor. Otherwise it may be an internal thermal overload that is tripping. It resets itself and comes back on. The thermal overload heats up and shuts off the compressor to protect it from too much heat which is gernerated by not enough refrigerant in the system to keep the compressor cool. It may be cheaper to replace the unit than have someone try and fix it. It is pretty time consuming and you cannot try it yourself unless you have an EPA Certificate to buy the refrigerant. Check with your local appliance repair man to see if he will tackle it.