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Do you need two jumpers from your outdoor condensor compressor to the start capacitor if you only have one and does it need 220 or 120 if it is a 40mfd rated for 330v?
Wiki User
∙ 17y ago
Do you have a dual capacitor that starts both the compressor and the fan motor? You need 230V to power the compressor. You should have one wire from the capacitor going from the start terminal on the compressor and one going from the common terminal to common on the capacitor.
Wiki User
∙ 17y ago
Wiki User
∙ 17y agoThe compressor needs 230V to start so 120 will not work.
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Why would the compressor be on when the inside temperature is lower than the thermostat setting?
Your contactor in the outdoor unit is stuck closed.
What could cause the outside fan not to work on a central air conditioner?
There are three main parts to an air conditioning unit. You could have a bad capacitor. AC units have fairly large capacitors that are required for the motor to start. That is the most likely point of failure. Otherwise, your compressor could have gone bad. Lastly, your fan motor could have gone bad.
How do you check your home ac unit compressor?
First make sure power is off...there is three leads that supply power to compressor...they should be Yellow Black and Red....make a diagram where these leads connect on your unit and then disconnect them...You will need a multi meter to check ohms of resistance...Yellow is usually the common lead...attach one meter lead to it...now touch other meter lead to black lead...should read somewhere between 1 to 4 ohms...now touch the meter lead to the red wire...should read somewhere between 3 to 7 ohms...next read from yellow lead to side of compressor...if you get any reading then compressor is grounded and needs to be replaced...if you get no reading there, reconnect lead and see if compressor will run...if it will not then if could be possible capacitor is bad...on some units they have start assist capacitors this could be bad also..replace these and see if compressor runs...if it will not run it will need to be replaced..if it does run use an amp meter and check load amps of compressor...
What could be the cause if the central air conditioning came back on but was not cooling after there was an electrical power outage in our neighborhoood for about 15 minutes?
It is possible that the power surge/outage damaged the capacitor of the air conditioning unit. If when the A/C is turned on, and the fan on the outdoor unit (usually located at the top of the case) is not turning, or is turning very slowly and/or sporadically, it's the capacitor.
How much propane does an outdoor lamp use?
The outdoor lamp manufacturer would be able to tell you that... all outdoor lamps are different.
How can you check your home AC compressor which does not turn on but the fan is running?
Check to see if the capacitor is good. It is usually located inside the outdoor unit. It could be that the capacitor is bad and needs replacing. The outdoor fan will still run if you have a dual capacitor. One sure sign of a blown capacitor is that the top of the capacitor is bowed outward. If you have a multimeter you could also check the amp draw on the condensing unit. I would look at the capacitor first though
What does it mean when your ac is blowing hot air?
Check your outside unit. Is the fan blowing? If not replace outdoor fan motor or the fan capacitor. If the fan is running then the compressor may not be. Usually a quick fix by replacing the capacitor. In most units a dual capacitor that is bad may shut down the fan or compressor. Call a HVAC technician to replace it. This can be very dangerous.
Condensor or condenser which is the correct one to use regarding the outdoor unit for an air conditioning system?
CondenSER is correct. CondenSOR is not a real word. Regards!
Why would the in-house fan come on and the AC compressor sounds like it wants to kick on but it just hums?
Does the outdoor fan come on? If it does not, then the fan motor or the capacitor is bad. Does the outdoor coil get hot? How loud is the hum? If the Condenser fan(outside Fan) is running and the condensor is not obstructed by debris or some other object, I would suspect rotor lock. This can be caused by high head pressure. A common cause of high head pressure would be a bad equalizer/unloader valve. This valve is responsible for bleeding the high pressure down during the compressor rest period between cooling cycles. Of course the worst scenario of all would be a siezed compressor. One way to test for a failed unloader or equalizer valve would be to shut the unit off for at least an hour and then restart. If it does restart odds are the valve is bad and not the compressor.
What could be wrong with your home AC central air if the thermostat clicks on and fan but AC unit won't start and new fuses and switching the breaker on and off didn't help?
It could be off on a low pressure switch. You need to check if you have 24 volts to the outdoor unit at the contactor coil. If the contactor is not working the outdoor unit will get no high voltage to the compressor or fan. It could also be that the capacitor for the fan and compressor is blown.
Does the outdoor compressor run if you have an electric heat strip in your indoor unit?
Yes a compressor will run the entire heating and cooling cycle, unless its in emergency heat in which case you will not have compressor operation. Defrost cycle is the AC mode except the outdoor fan is de energized to assist in the defrosting of the outdoor coil.
Can you mix sizes of indoor and outdoor air conditioner units like a 4 ton compressor and a 3 ton condenser?
Absolutely NOT ! you will end up with more problems,and spend more redoing it because it doesn't work together.And besides a 4 ton compressor needs a 4 ton condensor.3 ton condensor will not have the surface area to cool the freon from a hot vapor to a cool liquid,that is needed for optimal performance in air handler,which is also rated for a 4 ton ,due to the coil size and the expansion valve size.
What would cause your compressor to only come on sporadically when the central AC turns on and would the whole unit need to be replaced or just the compressor itself?
It could be that the outdoor fan is not turning causing the compressor to overheat and shut down on overload or your outdoor unit may need to be hosed off. You could have a faulty run capacitor. If you do need a new compressor you have to consider the age of your unit, the need to replace the indoor unit, and your financial situation. The cost of a compressor is over 500.00 in my area, then you have the labor, refrigerant recovery, and misc charges. It could bring the total of the job to 1000.00. Complete change out could run between 5000 and 8000 depending on size of equipment and geographical locale.
Where is the fan capacitor on central ac unit?
Either mounted to the fan or in the electrical compartment on the outdoor unit.
How come the compresser turns on for only five seconds at a time and when you touch it and it is extremely hot?
Probably not a bad run capacitor since the compressor gets real hot. It also may have a bad run capacitor. Same thing happened to me. It eventually would not come on at all. Shot, unfortunately, so I replaced the whole outside unit. ==Answer 4 == One of 3 problems, you are low on refrigerant, the condenser coil is dirty, or the outdoor fan is not working. The reason it shuts down is the compressor has an overload sensor that is opening and shutting the compressor down. You need to figure out which one of these is happening. No one has mentioned the possibility of a "locked rotor" within the compressor.j3h.
How does a home ac unit work?
Refrigerant is pumped by a compressor located in the out door section called the condensor to a evaporator coil as a liquid through a metering device.Your air handler or furnace blows air from your home across the evaporator where the liquid refrigerant expands into a gas and picks up the heat from the air across the coil.Then the gas is pumped to the condensor and is again condensed into a liquid through the means of cooling the gas usually by a fan pulling air across the coils of the outdoor unit.
Hvac is not giving cool air?
Check the filter first -Improvement- The filter would only equate to less air flow through the vents. Here are some suggestions. -When you turn your thermostat to cooling, does the fan on the outdoor compressor kick on? If not, you need to check the capacitor in your unit. Also, check the fuses to the disconnect. If yes; -Check the refrigerant charge to your compressor. If you don't know how to do this, call a licensed HVAC technician.
