It’s a large capacitor. They are used in those big outdoor AC units to kick start the fan. Being outdoors and subject to large temperature changes and vibrations for years they inevitable fail.
The fan motors will often also have them. It just depends on the size and type of motor. Most big AC motors use them unless you’re dealing with 3 phase power.
It’s a large capacitor. They are used in those big outdoor AC units to kick start the fan. Being outdoors and subject to large temperature changes and vibrations for years they inevitable fail.
https://static.homeguide.com/assets/images/content/homeguide-technician-replacing-ac-capacitor.jpg
They are to help start the compressor, not the fan. Anything with a compressor will have one, like your fridge.
They are used for the evap coils fan as well.
The fan motors will often also have them. It just depends on the size and type of motor. Most big AC motors use them unless you’re dealing with 3 phase power.