OEM Carrier Start Capacitor 88-108 MFD 330V for Model PH4RNG030000BBAA

This is the genuine OEM start capacitor (Part No. P281-8806) factory-specified for the Carrier PH4RNG030000BBAA heat pump system. The start capacitor provides the brief but powerful electrical boost needed to get the compressor spinning at startup. Without a functioning start capacitor, the compressor will hum, draw locked-rotor amperage, and trip its thermal overload — or simply fail to start at all. A failed start capacitor is one of the most common causes of a heat pump that clicks on but never cools or heats.

• Specs: 88–108 MFD (microfarad) | 330V rated | 2.06" diameter × 4.37" height | Includes integrated bleed resistor | Round case design
• OEM vs Generic: This OEM unit is manufactured to Carrier's exact MFD tolerance (±5%), ensuring correct starting torque. Generic start capacitors often carry ±10–20% tolerances, placing additional stress on the compressor windings and shortening system life.
• Install difficulty: 2/5 — Discharge capacitor fully before handling — a charged start capacitor can deliver a dangerous shock. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter (capacitance mode). Always photograph existing wiring before disconnecting terminals.
• Warranty & Shipping: 1-year OEM factory warranty against defects. Ships same business day from our warehouse — order before 3PM for same-day dispatch.

Compatibility: Direct OEM replacement for Carrier model PH4RNG030000BBAA. Cross-reference part numbers: P281-8806, 1017H, 092A088B330CE7X, 88-108UF, 1403H. Always verify MFD rating and voltage on your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — no guesswork.