OEM Carrier Dual Run & Start Capacitor Kit for Model PH10JA018000AAAA

This factory-matched OEM capacitor kit contains both the P291-2553RS Dual Run Capacitor and the P281-1356 Start Capacitor — the two capacitors specified for the Carrier PH10JA018000AAAA heat pump. The dual run capacitor keeps the compressor and condenser fan motor running continuously, while the start capacitor delivers the high-torque burst of energy needed to get the compressor spinning on every cycle. When either capacitor weakens or fails, you may experience hard-start faults, compressor humming with no motor movement, or the unit tripping on thermal overload shortly after startup. Replacing both as a kit ensures the entire capacitor circuit is restored to OEM specification in a single service call.

• Dual Run Capacitor Specs (P291-2553RS / superseded by P291-2554RS): 25+5 MFD (µF) | 370V AC | Round case | Rated for condenser outdoor motor circuits | Factory ±3% tolerance
• Start Capacitor Specs (P281-1356): 135–155 MFD (µF) | 330V AC | Round case | 2.56″ diameter × 4.37″ height | Includes bleed resistor for safe discharge
• OEM vs Generic: OEM capacitors are built to Carrier's exact factory tolerance and tested to meet their reliability standards. Generic aftermarket capacitors often carry ±10% MFD variance, which accelerates compressor wear, increases hard-start events, and can shorten overall system lifespan — particularly critical in heat pump applications that run year-round.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals (use an insulated resistor or dedicated discharge tool). Tools needed: 1/4″ nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Replace one capacitor at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty on both components. Ships same business day from our warehouse.

Compatibility: This kit is specified for the Carrier PH10JA018000AAAA heat pump. Always verify MFD and voltage ratings on your unit's data plate before installation. Not sure it fits? Our HVAC parts team confirms fitment before you order — reach out before checkout.