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micro farad
The compressor capacitor probably is going bad, or maybe the compressor will need a start capacitor and a potential relay.
The capacitor boosts the motor.
The capacitor symbol looks like: --|(--
capacitor on the condencer unit nothin will work
Capacitors are measured in Farads or microfarads.
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
The SI unit of capacitance is the farad. 1 farad is 1 coulomb per volt.
Either mounted to the fan or in the electrical compartment on the outdoor unit.
Gram
Typically a bad capacitor is a sign of a weakening Compressor in the unit. Rule of thumb: If the unit is 20+ years old, you would be putting a band aid on it by replacing the capacitor. If you decide to try and get by with an older system for a few more seasons, I recommend to put a new capacitor on the unit with a hard start system installed on the compressor. You can normally have this done for under $300.00. And back to your question; capacitors are sized depending on the size of the unit. Check your tonage of the unit and bring the capacitor with the correct tonage to a Parts house and they will make sure it is properly sized. Hope this helps.
The capacitor in which only a specific number of electric lines or electrons can pass through a unit area is called as 'Flux Capacitor'