This product is used for starting air conditioner or heat pump compressors (both reciprocal and scroll type) that need an extra "jolt" of electricity to get started. Equipment that needs a hard-start capacitor:
- heat pump or condensers split-systems that have a thermostatic expansion valve (TXV) installed on them
- old heat pump or condensers that are mechanically stuck and not operating
Either the outdoor fan does not run, the compressor does not run, or both do not run.
The low voltage contactor humming. The capacitor may be swollen or even blown apart with capacitor oil.