How To Check A Capacitor On Ac Unit. Most electric motor run cap applications use a rating of 25-100 uf microfarads capacitance and voltages of 370 or 440. Watch this video tutorial and learn how to bench check a single capacitor and a dual capacitor.
If its outside of that range then replacement of the capacitor may be necessary. Look through the vents for the fan on top of the unit. If the signs above apply to your situation walk outside toward the air conditioners condenser unit.
The first is to remove the capacitor from the circuit.
How to Test an AC Capacitor. If your AC fan is not spinning find a long thin object a stick screwdriver pliers. It delivers power to the motor driving the air conditioning system. Just a simple way to verify if a capacitor is good or not using a multi meter set on Ohms.
