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OEM Carrier Dual Run Capacitor 45+5 MFD 370V — PH3PNA030000AA
Carrier

OEM Carrier Dual Run Capacitor 45+5 MFD 370V — PH3PNA030000AA

SKU: CARRIE-PH3PNA030000AA-CAPACITOR-P291-4553RS Brand: Carrier
✓ Guaranteed to fit PH3PNA030000AA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Dual Run Capacitor 45+5 MFD 370V for Model PH3PNA030000AA

This OEM dual run capacitor (part# P291-4553RS) is the factory-specified replacement for the Carrier PH3PNA030000AA split-system air conditioner. The dual run capacitor stores and releases the electrical charge needed to start and sustain both the compressor and the condenser fan motor simultaneously. When this component fails, you'll typically notice a telltale hum from the outdoor unit with neither motor starting, the system tripping the breaker, or intermittent short-cycling before shutdown. A quick multimeter test across the terminals will confirm a capacitor out of tolerance — and this direct OEM replacement restores factory operation immediately.

  • Specs: 45+5 MFD (microfarad) | 370V rated | Round round-style case | ±5% factory tolerance | Non-PCB dielectric fluid | UL-approved current interrupter | Multiple electrical terminals | Part numbers: P291-4553RS (primary), P291-1503 (single run companion)
  • OEM vs Generic: OEM capacitors are wound and sealed to Carrier's exact factory specification, maintaining tight ±5% MFD tolerance. Generic alternatives often run ±10% or wider, placing undue electrical stress on the compressor windings and condenser fan motor bearings, accelerating wear and shortening system life.
  • Install Difficulty: 2/5 — Always discharge the capacitor before touching any terminals (use an insulated screwdriver across terminals). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Swap wire-for-wire to the new unit. Total job time: 15–20 minutes for a capable DIYer.
  • Warranty: 1-year OEM factory warranty coverage. In stock and ships same business day from our warehouse — get your system cooling again fast.

Compatibility: Engineered as a direct OEM fit for Carrier model PH3PNA030000AA. Also cross-references part numbers HC98JA046, HC93CZ040, HC98CA046, P291-4553R, and P291-4554RS (current successor). Always verify the MFD rating and voltage stamped on your unit's original capacitor data label before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — reach out before you buy.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $99
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Capacitor fit my Carrier OEM Carrier Dual Run Capacitor 45+5 MFD 370V — PH3PNA030000AA?
Yes. This is the factory-specified OEM capacitor for the Carrier OEM Carrier Dual Run Capacitor 45+5 MFD 370V — PH3PNA030000AA. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the capacitor on my Carrier OEM Carrier Dual Run Capacitor 45+5 MFD 370V — PH3PNA030000AA?
Difficulty: Easy (20–30 min)
Step 1: Turn off power at breaker. Step 2: Open condensing unit panel. Step 3: Photograph the old capacitor wiring (Common/Herm/Fan). Step 4: Discharge old capacitor with insulated screwdriver. Step 5: Disconnect and remove old capacitor. Step 6: Mount new capacitor, reconnect wires to matching terminals. Step 7: Close panel, restore power, test. Tools: screwdriver, needle-nose pliers.
My AC hums but won’t start. What part do I need?
An AC that hums but won’t start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost to start the compressor. When it fails, you hear humming but the motor can’t overcome inertia. Other symptoms: fan spinning slowly, AC cycling on/off rapidly, or a visibly swollen capacitor. Fix: replace capacitor ($15–$80 DIY, 30 min).
Is this capacitor compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier capacitor?
OEM strongly recommended. OEM capacitors have ±6% MFD tolerance vs aftermarket ±10%. The looser tolerance causes motor winding stress, higher temps, and shorter compressor life. Price difference is only $10–$20 — OEM is the clear value choice.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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