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This is the factory OEM dual run capacitor for the Carrier PH4RNG060000BBAA heat pump system, supplied under Carrier part number P291-8073RS. The dual run capacitor stores and delivers the precise electrical charge needed to start and sustain both the compressor and the condenser fan motor simultaneously. When this capacitor degrades or fails, you may notice the system humming without starting, the compressor or fan cutting out shortly after startup, or the unit short-cycling and tripping on thermal overload. Replacing it with the correct OEM-spec unit restores proper motor performance and protects your compressor from accelerated wear.
Compatibility: Designed and factory-specified for the Carrier PH4RNG060000BBAA heat pump condenser. Always cross-reference the MFD rating and voltage printed on your unit's data plate before ordering to confirm fitment. Need help verifying the right part? Our HVAC parts specialists are available to confirm compatibility before you buy — order with confidence and get back up and running fast.