central air not working
If the fan isn’t turning, look for an overload button or switch to reset (not all types have this). 1-800-269-2609 24/7. First, make sure the problem is the capacitor and not the contactor. Your AC worked fine all summer long, but now your central heating is not working. You can use the AC’s circuit breaker to shut off the unit, but that should not be a permanent solution—circuit breakers are not designed to be used like light switches. When the air conditioner works but the house doesn't cool, the problem is probably in the distribution system. If this is the case, clean or change your AC filters. This indicates that the capacitor is bad and needs to be replaced. Use our troubleshooting guide to learn how to fix the problem yourself. 8 Finally, have the coolant checked. With an old or broken float, you’re probably better off replacing the condensate pump so you don’t have to do this again in the near future. Your system’s air filter traps dust, dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner. Check the furnace filter and blower to see whether they’re blocked. Furnace or air handler rattling ductwork. Open the circuit breaker panel, and locate the breaker switch for your central unit. Reduced air flow, whether caused by dirty filters, a dirty coil, dirty squirrel cage blower, or a broken fan motor can cause the coil to freeze up, blocking air flow. When the fan goes down there is no way to cycle the air and thus the system is essentially stalled. 5 Use a hose and nozzle with a trigger grip to spray debris from the fins (from inside the unit). If the condenser coils are coated with dust or debris, use a garden hose to wash them off. If your furnace’s fan isn’t working, check your thermostat and make sure it’s set to the correct setting. Sometimes you can get the compressor fan spinning (clockwise) by pushing it with a thin stick or long screwdriver poked through the grille. Although a qualified air-conditioning repair person should handle certain types of central air conditioner repairs, you’ll find methods for handling simple repairs and maintenance yourself in this article. If this is the case, use a wet-dry vacuum to suck all of the water out of the tube. Feel for air coming out of the vents. Your system’s air filter traps dust, dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner. Heat doesn't seem to work at all( had to use fire place last winter, and have 3 window units going now and still stays about 80-87 degrees in house.) If the compressor doesn’t go on when you hold the Y wire to the R terminal, turn the power back off and either call an air-conditioning technician or check the capacitor as discussed next. If none of these steps worked, the coolant may need recharging by an air conditioning professional. My central ac/heat not working [ 1 Answers ] Hi, I have a temp star central ac/heat system installed in my home. Air Conditioner Outside Unit Fan Not Working. A stuck or broken ball float won’t rise. That drain tube goes directly outside, often terminating near the compressor, or to a floor drain or to a small electric “condensate pump” located by the air handler. Though most air handlers have direct-drive motors, some older units may be belt-driven. If your room has dramatic swings in temperature before the system kicks on, see Room Temperature Too Hot, Then Too Cold. (See How to Test and Replace an AC Run Capacitor, above.). Check the fuses in the disconnect box located outside, near the condenser, to make sure there’s power. 1 Posts . Then check the door switch—a small switch inside the metal door that prevents the appliance from running when the cabinet is open. Outdoor compressors sometimes make buzzing, humming, or grinding noises. Upon inspection, the outside compressor does not come on when I turn the ac on unless I press the compressor contactor. When these wires break, erode or are damaged in any way, air conditioner service is impaired. However, if it stops working completely and you aren’t sure why, troubleshoot before calling a pro: Check the circuit breaker or fuse box to find out whether the unit has power. If the air coming from your vents doesn't feel cool, it could just be your thermostat settings. Plan to do this on a relatively warm day. If the air handler doesn’t run at all, it may not be receiving power. You’re eager to retreat into your cooled down space, throw your feet up on the couch and enjoy a sweet drink… only to find that the air coming out of the vents isn’t that strong and the inside of your home is almost as hot as the outside. This is an easy enough fix, as all you need to do is flip the circuit back or replace the blown fuse. If your central air conditioner will not turn on, try to troubleshoot the problem yourself before calling a serviceman out to your home. This would indicate that the thermostat and the blower motor are operating, but the refrigeration system (outdoor compressor) is not working right or air isn’t circulating properly, usually because of dirty filters.eval(ez_write_tag([[250,250],'hometips_com-leader-2','ezslot_8',625,'0','0'])); A kinked refrigerant line, or a blower fan that isn’t running right can cause this, too. Central AC systems have a lot of sensors and switches, any of which might shut down the entire works. By keeping your AC unit working well, you can save energy and, as a result, money. Another common and easily remedied situation that sometimes results in a central air conditioner fan not working is a dirty, clogged air filter. Beware: The capacitor holds an electrical charge even when the power is turned off to the equipment. AC air handler squealing or grinding noises. Please be sure to take safety precautions when doing this so that nobody gets hurt. There is normally a shut-off or disconnect panel on the wall next to the outdoor compressor. Reset the equipment’s switches and/or overloads. Here’s how you can replace the air conditioner’s blower belt: 1 Turn off all power to the unit and, if the air handler is a gas furnace, turn off the gas at the gas valve that serves the furnace. Photo By Lopolo on Shutterstock. One room is hot and the rest of the house is cool. Split-system central air conditioners, used with forced air furnaces, take hot air from the house and blow it through an evaporator coil located in the top of the furnace to cool the air. AC won’t turn on. amzn_assoc_tracking_id = "widget05-20"; 6 Last but not least, check the compressor’s capacitor and contactor. A Blocked Outdoor Air Conditioning Unit. This is why it is generally best to have an HVAC professional do this repair. Then you can re-tighten the tension once the belt is in place. Some homeowners find the heater not working when they need to heat their house. If a direct-drive blower is squealing or making a grinding noise, shut off the unit and—unless you’re an accomplished do-it-yourselfer—call an HVAC professional—the motor’s bearings are probably shot. The cooled air circulates throughout the house via the heat ducts then returns to the furnace as warm air to be cooled again. motorhome a/c not running; air conditioner problem; winnebago vectra; Reply to this topic; Start new topic; Recommended Posts. If recommended by your maintenance manual, oil the bearings according to the manufacturer’s directions. How to Test a Circuit Breaker with a Voltage Tester, How to Remove Water Stains from Wood Furniture, By Gary Hedstrom, Peg Hedstrom, Judy Ondrla Tremore. My central AC air conditioner system works very well. Another sign that you may have damage to the air ducts is an increased electric bill. Now that you have a basic understanding of how air conditioners work, let’s dig a little deeper and describe the entire process works. jlacaeyse jlacaeyse Members; 7 posts; Location: Grinnell, IA; I travel: With children; Report post ; Posted July 30, 2013. Whether kids, dogs, or an accidental tap with the vacuum cleaner, the plug could be partially or completely dislodged. Causes for Central Air Conditioner Freezing Up . The belt should slip right into place. Most circuit panels have a list or display inside the panel door that helps identify what each breaker switch controls. And your significant other won’t have to complain about wearing a sweater indoors. You can clear it, but it’s probably easier just to replace the whole thing. If the fan is attached to the grille, be careful not to pull any wires loose. AC problems caused by wrong thermostat settings: Warm or hot air coming from air vents. Call a qualified local AC professional—this is not something you can do yourself. For the last common reason why your thermostat is not working correctly, we can take the fan and its dysfunctions which will lead to this problem eventually. If the air handler doesn’t blow air properly, the indoor evaporator coil may be dirty or frozen up. If the breaker continues to trip, suspect a short in the system—in the compressor, capacitor, or the fan motor. Just reverse the disassembly steps given above. If you can hear the AC running but it isn’t blowing air, please see Air Conditioner Not Blowing Air. Our trucks are always fully stocked, so if you need an AC repair, we should be able to help ASAP. Having a broken HVAC system in your home or office can be a source of great discomfort and inconvenience. Click to buy on Amazon. With this type, you pull the body straight out to remove it. 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