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OEM Carrier Dual Run Capacitor 45+7.5 MFD 370V for PH13NR030000AAAA
Carrier

OEM Carrier Dual Run Capacitor 45+7.5 MFD 370V for PH13NR030000AAAA

SKU: CARRIE-PH13NR030000AAAA-CAPACITOR-P291-4573RS Brand: Carrier
✓ Guaranteed to fit PH13NR030000AAAA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Dual Run & Start Capacitor Kit 45+7.5 MFD 370V for Model PH13NR030000AAAA

This factory-matched capacitor kit is the OEM-specified replacement for the Carrier PH13NR030000AAAA heat pump condenser. It includes both the dual run capacitor (P291-4573RS) — which powers both the compressor and condenser fan motor simultaneously — and the start capacitor (P281-8806), which delivers the extra electrical torque needed to kick the compressor into motion on each cooling or heating cycle. When either capacitor fails, you'll typically hear a loud hum with no motor movement, experience a hard shutdown within seconds of startup, or notice the outdoor unit running but not cooling or heating effectively.

  • Specs — Dual Run Capacitor (P291-4573RS): 45+7.5 MFD (microfarad) | 370V rated | Round case | Dual-section (compressor + fan) | OEM tolerance ±3% | Superseded by P291-4574RS
  • Specs — Start Capacitor (P281-8806): OEM Carrier start capacitor | Factory-matched for PH13NR030000AAAA compressor | Provides high-torque startup boost
  • OEM vs Generic: OEM capacitors are manufactured to Carrier's exact factory tolerance specifications. Generic aftermarket units frequently ship with ±10% MFD variance, which accelerates compressor and fan motor wear and can void equipment warranties.
  • Install Difficulty: 2/5 — Always discharge the capacitor fully before touching terminals (use an insulated resistor or discharge tool). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter set to capacitance mode. Photograph all wiring connections before disconnecting. Turn off power at both the disconnect box and the thermostat before beginning.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed specifically for the Carrier PH13NR030000AAAA heat pump condenser. Always verify the MFD rating and voltage on your unit's data plate before ordering. Note: P291-4573RS has been superseded by P291-4574RS — both are covered. Not sure it fits? Contact our team for free fitment verification before you order — we confirm compatibility on every HVAC part.

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 PH13NR030000AAAA?
Yes. This is the factory-specified OEM capacitor for the Carrier PH13NR030000AAAA. 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 PH13NR030000AAAA?
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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