it is a canister that wires plug into it produces more voltage to supply the system their are start caps and run caps. this part is tested by a uf reading
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The most likely cause is the fan motor has failed. If it turns free then see if the capacitor is bad. Turn off the power remove the capacitor. Your local supply houses can test it for you.
The old capacitor has it's rating on the side. If the old capacitor is missing the you will have to read the capacitor rating on the data plate for the compressor and the one for the condenser fan motor as well. Each of them will tell you what capacitor they require.The compressor will be something like 35µF.
Data plate for the compressor in located on the top of the compressor or on the side and will look similar to the one of the ones pictured below. The fan motor one will be on the side of the motor, you will have to remove the top of the condensing unit to see the fan label.
The rating should be on the capacitor, for instance 40/5-440 means you have a 40 microfarad capacitor for the compressor and a 5 mirofarad capacitor for the fan motor and it's rated for rated for 440 volts.
The capacitor should be whatever the compressor and fan calls for, but in a emergency you can use anything within + or - 10% on the microfarads but the voltage should be the same or higher than what's called for, until you can get the proper capacitor.
The higher the volts the better the insulation value of the capacitor, so you can always go to a higher voltage rating.
If you can't read the specs on the capacitor then look on the compressor and fan for the ratings. If they're not there then take the model number of the compressor and fan to the parts house and they can look it up for you.
Sounds like a bad capacitor. They can be bad and the fan will still run. Turn off power and check for burnt wires on the top of the contactor going to the capacitor or on the top of the capacitor.. Check terminals on the compressor also. When capacitors go bad they are slightly swollen. They can also look good and be bad . Could be compressor but start with capacitir and wires. IWork on a lot goodman units. Most of the time it is the cap.
I have scroll chiller contains scroll compressor tandom circuit. One of the compressor failure from it due to unbalance of the winding. Previously compressor thermistor opens two to three times. Also one phase open in contactor of the compressor. Can you guide me regarding the reason of compressor failure and what is the next step for the replacement of compressor. Also give guide line for the points take care.
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