Air from unit does not feel cold enough: Room temperature below (11°C). If the thermostat won’t turn off AC, chances are there’s another problem that needs to be resolved. We are no longer supporting IE (Internet Explorer), refrigerants can be harmful to the environment. Be sure to double-check the rating plate on the air conditioner for the amperage required, to ensure that your breaker can supply the proper current. Whether you’re returning from work or getting ready to relax after a shopping trip, coming home to a hot house is never ideal. If you want to learn about BTU and get other helpful tips that will make your decision easier, check out our guide to the best window air conditioners. Most manufacturers agree on how to solve various issues with window AC units. Why Isn’t My Central Air Conditioner Blowing Cold Air? Here’s how to reset it. If the cord is fine, and nothing seems amiss, make sure the outlet doesn’t appear damaged. A window or room air conditioner that doesn’t cool may need to be recharged with refrigerant, but the chances are good it simply needs to be cleaned. If your AC won't … To determine if the thermostat is defective, set the air conditioner to cooling and then use a multimeter to test the thermostat for continuity. For those without central air conditioning, a window air conditioner can help bring down the temperature. If the compressor engages, then the unplugging was sufficient to reset the air compressor if not, advance to the next section. Replace it if necessary, reassemble the unit and try it again. Another possibility: Your circuit breaker could be overloaded and tripped, cutting power to the window air conditioner. If your unit was turned on and off quickly or there was a power failure, it may need to be reset. A lifelong Ohioan, Chris grew up around classic rusty sports cars from Japan and England. If the window AC compressor is not staying on, then the compressor is likely overheating. If it was expensive, but the warranty has expired, calling a handyman to assess the situation may be a good option. You should also consider the features on a window air conditioning system, as they will have a large impact on price. Checking for power is the first thing you should do when a car doesn’t start, and it’s the same for an air conditioner that sits in a windowsill. Want something in the budget class? While they don’t require much maintenance, there is nothing more frustrating than when your window air conditioner won’t turn on. Your manual should give you instructions on how to do this, and it may not be necessary if your cord has a reset button. Turn power ON. If you do find it hanging, look at the end of the plug to make sure the prongs aren’t bent before plugging it back in. In this case, simply turn the machine off and wait for three minutes before trying it again. “A dirty coil can lead to multiple failures, including high head pressure, which overworks the compressor,” he says. Unfortunately, sometimes fixing a window air conditioner that won’t turn on isn’t simple as there could be an underlying issue at work. A pet or person could have tripped over the power cord and unplugged it from the wall as well. No cold air coming from the air conditioner can mean the circulating fan is running too slow or not at all. If it’s a modern home with a breaker box, and you are lucky, there will be labels next to each breaker. 03/28/2019 If the air conditioner does not power on, possible causes are; power outage in the home tripped the circuit breaker, the outlet that the unit is plugged into does not have power, or the unit may require a repair service. On how to Vent a Portable air conditioner the cord, you’ll want to check the level. 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