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OEM Carrier Dual Run & 35+5 MFD Start Capacitor Kit for PH13NR018000AFAA
Carrier

OEM Carrier Dual Run & 35+5 MFD Start Capacitor Kit for PH13NR018000AFAA

SKU: CARRIE-PH13NR018000AFAA-CAPACITOR-P291-3553RS Brand: Carrier
✓ Guaranteed to fit PH13NR018000AFAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Dual Run & Start Capacitor Kit — P291-3553RS + P281-8806 for Model PH13NR018000AFAA

This factory-matched OEM capacitor kit contains both the dual run capacitor (P291-3553RS) and the start capacitor (P281-8806) specified for the Carrier PH13NR018000AFAA heat pump. The dual run capacitor continuously supports both the compressor and condenser fan motor during normal operation, while the start capacitor delivers an extra torque burst to help the compressor overcome startup inertia. When either fails, symptoms include a loud hum with no motor movement, a compressor that trips the breaker, short-cycling within the first few minutes, or a system that simply won't turn on at all. Replacing both at the same time eliminates callback risk — if one has failed, the other is likely near end-of-life.

  • Specs — Dual Run (P291-3553RS): 35+5 MFD (microfarad) | 370 VAC | Round case | HERM–C–FAN terminals | Factory-matched ±3% tolerance
  • Specs — Start Capacitor (P281-8806): 88–108 MFD | 330 VAC | Includes bleed resistor | Cycles compressor on startup
  • OEM vs Generic: OEM Carrier capacitors are manufactured to exact factory tolerance. Generic units commonly run ±10% MFD deviation, which accelerates compressor winding stress and shortens motor life — especially critical on a heat pump running year-round.
  • Install difficulty: 2/5 — Always discharge the capacitor before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, insulated screwdriver, multimeter. Photograph all wiring connections before disconnecting. Note: P291-3553RS has been superseded by P291-3554RS — this kit ships the current OEM-equivalent specification.
  • Warranty: 1-year OEM factory warranty on both capacitors. Orders placed by 3 PM ship same business day from our warehouse.

Compatibility: Engineered for the Carrier PH13NR018000AFAA heat pump condensing unit. Verify MFD, voltage, and terminal configuration against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.

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 PH13NR018000AFAA?
Yes. This is the factory-specified OEM capacitor for the Carrier PH13NR018000AFAA. 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 PH13NR018000AFAA?
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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