Hi, my a/c has about 3 years, this season i tried to turn on the a/c but is not cooling the air. next day i notice fan is not running. i haerd like a sound where all the cables at but the fan is not turning. is clean i sand the connectors etc, etc what i should do?
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Re: fan is not runinig
Check the fan motor. make sure that it spins freely and the shaft doesn't wiggle side to side (in and out wiggle is ok) after that check the run capacitor for the motor. It takes a special tool to check a capacitor you might need to call an a/c service to do this for you. also check fuses and circuit breakers, sometimes only one fuse will trip and not the other
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Hi David, I'm glad to help. 3 Things could be happening here. (1) There could be air trapped in the cooling system somewhere, which you can remove with thye bleeder screw near the thermostat housing. Try this first. (2) The cooling fans may be trying to go out for the radiator. The next time the problem occurs raise the hood and see if the cooling fans are working, if not replace the cooling fan module from the dealer. (3) Blown Head Gasket. This is not very likely because you say it happens ever few days and if it were a head gasket then it would happen after running a few minutes everytime. Hope this helps and have an awesome day David.
Try the following to begin operating the air conditioner:1. Plug in the air conditioner. (To prevent electrical hazards, do not use an extensioncord or an adapter plug.)2. Set the exhaust vent to the CLOSED position.3. Press “On/Off” button to turn unit on.5. Press Mode “COOL”6. Press “TEMP/TIME” up or down V to the desired set temperature.Review the “Air Conditioner Features” section for other settings
Try setting your thermostat between 72°F and 78°F. Each degree setting below 78°F will increase your energy consumption by approximately 8%. As you can see, that can add up to a lot of money over a year.
Inspect and clean both the indoor and outdoor AC/Heating coils. The indoor coil in your air conditioner acts as a magnet for dust because it is constantly wetted during the cooling season. Dirt build-up on the indoor coil is the single most common cause of poor efficiency. The outdoor coil must also be checked periodically for dirt build-up and cleaned if necessary.
Check the refrigerant charge. The circulating fluid in your air conditioner is a special refrigerant gas that is put in when the system is installed. If the system is overcharged or undercharged with refrigerant, it will not work properly. You may need a service contractorto check the fluid and adjust it appropriately.
Use bath and kitchen fans sparsely when you are running the air conditioning system.
Reduce the cooling load by using cost-effective conservation measures. For example, effectively shade east and west windows. When possible, delay heat-generating activities, such as dishwashing or baking, until the evening on hot days.
Try to not use a dehumidifier at the same time your air conditioner is operating. The dehumidifier will increase the cooling load and force the air conditioner to work harder, which in turn increases your utility bill.
Over most of the cooling season, keep the house closed tight during the day. Don’t let in unwanted heat and humidity. If practical, ventilate at night either naturally or with fans.
Room Air Conditioning Units
The unit should be level when installed, so that the inside drainage system and other mechanisms operate efficiently. If possible, install the unit in a shaded spot on your home’s north or east side. Direct sunshine on the unit’s outdoor heat exchanger decreases efficiency by as much as 10%. You can plant trees and shrubs to shade the air conditioner, but do not block the airflow.
Set the fan speed on high, except on very humid days. When humidity is high, set the fan speed on low for more comfort. The low speed on humid days will cool your home better and will remove more moisture from the air because of slower air movement through the cooling equipment. Consider using an interior fan in conjunction with your window air conditioner to spread the cooled air more effectively through your home without greatly increasing electricity use.
Set your air conditioner’s thermostat as high as comfortably possible in the summer. The less difference between the indoor and outdoor temperatures, the lower your overall cooling bill will be. And don’t set your thermostat at a slighter setting than normal when you turn on your air conditioner. It will not cool your home any faster and could result in excessive cooling and, therefore, unnecessary expense.
Don’t place lamps or televisions near your air-conditioner’s thermostat. The thermostat senses heat from these appliances, which can cause the air conditioner to run longer than necessary.
Proper maintenance of your air conditioner will also save energy. Be sure to do the following:
At the start of each cooling season, inspect the seal between the air conditioner and the window frame to ensure it makes contact with the unit’s metal case. Moisture can damage this seal, allowing cool air to escape from your house.
Check your unit’s air filter once a month and clean or replace filters as necessary. Keeping the filter clean can lower your air conditioner’s energy consumption by 5% to 15%.
Occasionally pass a stiff wire through the unit’s drain channels. Clogged drain channels prevent a unit from reducing humidity, and the resulting excess moisture may discolor walls or carpet.
*In the winter, either cover your room air conditioner or remove and store it.
there are 3 things to be considered,first,if the compressor motor `s connectors are having loose,it gives a hi ampere to your RELAY that can cause to its contacts being fried,second,the compressor motor itself is gaining a hi ampere already i.e. having unusual sound that can cause heavy friction inside the turning mechanism and third the last but not the least,maybe this time,the tubes or the compressor itself having very small holes that causes to the refrigerant to escape and it doesn`t gives off cold air.
An abrupt cycle of power can cause a motor to run backwards. If you turn the power off again and wait 10 seconds or so (enough for blade to stop spinning) it should run the right way. Put the capacitor back the other way and try again.
Air conditioner compressor will not start. When power is applied
to the air conditioning outdoor unit the fan starts, but you hear a sound like
the compressor is trying to start, "UGGG"..., for about 5 to 10 seconds and then
all you hear is the outdoor condenser fan run. The compressor is locked and will
not start. What is happening is the compressor is trying to start, but because
the compressor motor is locked it tries to start for a few seconds and then
because of the high amperage being drawn goes off on internal overload. The
internal overload protects the compressor windings from overheating and burning
up. I see this many times during the start of the air conditioning season.
If the induction motor ain't going I would look for a blown 3 amp (purple) fuse on the control board. If that was good I would check if any of the roll out switches were tripped. If a rollout switch was tripped check or air restrictions somewhere.
If the outdoor unit isn't coming on then you need to have a tech come out and check that the unit is being called to come on. If not, then you need to check that the tstat is calling for cool. If it is then there could be a short in the wirning to the ouside unit. If it is being called to come on and the outdoor unit's compressor is kicking on but the fan motor doesn't, then it could be as simple as a capacitor or the motor could be bad. Either way, it sounds as though you may need to call for a service professional.