OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1RPA036074ABWA

This OEM single run capacitor is the factory-specified replacement for the Carrier PY1RPA036074ABWA furnace. Sourced directly from the draft inducer motor assembly (OEM part HC30GB230), this 4 MFD 370V oval capacitor supplies the phase-shift current that starts and sustains the inducer motor on every heating cycle. When this capacitor fails, the draft inducer motor will hum without spinning, fail to prove combustion airflow, and trigger a pressure switch lockout — leaving you with no heat. Replacing it early prevents costly motor burnout.

• Specs: 4 MFD (microfarad) | 370V rated | Oval case | Factory-matched ±5% tolerance | 50/60Hz | Cross-references: HC30GB230, P291-0403, P291-1003, HC90AA004, HC91CA004, HC90AB004
• OEM vs Generic: This is the genuine Carrier/Totaline OEM capacitor — reliability tested to 60,000 service hours with UL-approved pressure-sensitive interrupter. Generic alternatives often carry ±10% MFD tolerance, which accelerates inducer motor winding wear and shortens motor life.
• Install difficulty: 2/5 — Disconnect power and verify zero voltage before touching any terminals. Tools needed: flathead screwdriver, needle-nose pliers, multimeter (capacitance mode). Always photograph wiring orientation before disconnecting the old capacitor. Discharge the old capacitor safely through a resistor before handling.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model PY1RPA036074ABWA furnace units using the HC30GB230 draft inducer motor assembly. Verify the 4 MFD and 370V ratings on your unit's data plate or existing capacitor before ordering. Not sure it's the right fit? Our HVAC parts specialists verify fitment before you buy — just reach out.