Can I use a different size capacitor?

Under sized (smaller than needed microfarad) will result in longer starting times, and if excessively undersized no starting. Larger than needed microfarad values will not cause much of any problems (especially for a start capacitor). A larger than needed run capacitor will not have any real affect.

Can I replace a capacitor with a bigger one?

You can almost always replace a capacitor with one of a higher voltage. This is the limiting factor of a capacitor due to dielectric breakdown voltages that the manufacturer chose.

What happens if you put a bigger capacitor on a compressor?

The higher the MFD of the capacitor, the greater the stored energy and the greater the start winding amperage. This is why oversizing a capacitor can quickly cause damage to a compressor. By increasing the current on the start winding the compressor start winding will be much more prone to early failure.

How do I know what size capacitor I need for my AC?

Multiply the full load amps by 2,650. Divide this number by the supply voltage. The full load amps and the supply voltage can be found in the owner’s manual. The resulting number is the MicroFarad of the capacitor you need.

How much does it cost to replace AC capacitor?

On average, the cost of an air conditioner capacitor varies, with a branded part costing significantly higher than a generic unit. Some brands can cost up to $300. On average, the cost of a replacement air conditioner capacitor ranges anywhere from $120 to $150.

What are the symptoms of a bad AC capacitor?

The most common signs and symptoms of a bad AC capacitor include: AC not blowing cold air. AC takes a while to start once you turn it on. Humming sound coming from your air conditioner. AC shuts off on its own.

How do you replace a capacitor?

Capacitor is used to control the motor speed. To replace fan capacitor you require tester, screwdriver, pliers, wire tape and replacement capacitor. Remove the screws from the fan’s housing. There are usually three screws of the housing. To disconnect the fixture wires unscrew the plastic wire nuts.

How to prepare for AC replacement?

Start Saving Now. Your HVAC unit is an investment that you want to have money put aside for in the event that it needs repairs or if you have to