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OEM Carrier Dual Run Capacitor 45+5 MFD 440V for PY4GNAB42060AA
Carrier

OEM Carrier Dual Run Capacitor 45+5 MFD 440V for PY4GNAB42060AA

SKU: CARRIE-PY4GNAB42060AA-CAPACITOR-P291-4554RS Brand: Carrier
✓ Guaranteed to fit PY4GNAB42060AA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Dual Run Capacitor 45+5 MFD 440V for Model PY4GNAB42060AA

This is the genuine OEM dual run capacitor (part number P291-4554RS) factory-specified for the Carrier PY4GNAB42060AA split-system air conditioner. The dual run capacitor serves a critical role in your system — it simultaneously powers both the compressor and the condenser fan motor, providing the starting torque and continuous run support each needs to operate. When this capacitor begins to fail, common symptoms include an audible hum with no motor movement, the compressor short-cycling within minutes of startup, the condenser fan spinning sluggishly or not at all, or the entire outdoor unit failing to respond to a cooling call. Left unaddressed, a weak capacitor will stress the compressor and shorten its life significantly.

  • Specs: 45+5 MFD (microfarad) | 440V rated | Round case | ±6% tolerance | 50/60 Hz | 10,000 AFC | Castor oil protected | No-PCB construction
  • OEM vs Generic: This is a genuine Carrier OEM part built to exact factory specifications. Generic capacitors often carry a ±10% MFD tolerance vs. the OEM ±6%, which causes motor inefficiency, increased heat, and premature compressor wear over time.
  • Install difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. If you are unsure, consult a licensed HVAC technician.
  • Warranty: 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Verified fit for Carrier model PY4GNAB42060AA. Also replaces legacy Carrier part numbers HC98KA046 and 319186-702. Confirm the MFD rating and voltage on your unit's data plate before ordering. Our team is happy to verify fitment — just 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 PY4GNAB42060AA?
Yes. This is the factory-specified OEM capacitor for the Carrier PY4GNAB42060AA. 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 PY4GNAB42060AA?
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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