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OEM Carrier Single Run Capacitor 4 MFD 370V for PY3PPA036090AA
Carrier

OEM Carrier Single Run Capacitor 4 MFD 370V for PY3PPA036090AA

SKU: CARRIE-PY3PPA036090AA-CAPACITOR-P291-0403 Brand: Carrier
✓ Guaranteed to fit PY3PPA036090AA — or your money back. Terms

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OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY3PPA036090AA

This is the genuine OEM Carrier/Totaline single run capacitor factory-specified for the Carrier PY3PPA036090AA packaged unit. The run capacitor stores and releases electrical charge to sustain the condenser fan motor during operation. When it degrades, you'll typically notice symptoms such as a humming or buzzing sound with no fan movement, the unit struggling to start, blowing warm air, or short-cycling on and off — all classic signs of a failed run capacitor that should be replaced promptly to prevent downstream motor damage.

  • Specs: 4 MFD (microfarad) | 370V rated | Oval case | Metallized polypropylene film construction | ±5% factory tolerance | RoHS compliant | Replaces P291-0403, P291-1503
  • OEM vs Generic: This OEM Totaline/Carrier capacitor is built to exact factory tolerances and is UL approved with a patented pressure-sensitive interrupter. Generic capacitors often run wider tolerances (±10%), which can increase motor current draw and shorten motor life over time.
  • Install difficulty: 2/5 — Always discharge the capacitor before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (to verify capacitance before and after). Photograph all wiring before disconnecting. Turn off power at the disconnect box before starting.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Directly fits Carrier PY3PPA036090AA packaged units. OEM part numbers covered: P291-0403 (primary) and P291-1503 (superseded). Note: P291-1503 has been superseded — this listing covers the current replacement. Always verify the MFD and voltage rating on your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists are ready to confirm compatibility before you buy — contact us today and get your unit back up and running fast.

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 PY3PPA036090AA?
Yes. This is the factory-specified OEM capacitor for the Carrier PY3PPA036090AA. 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 PY3PPA036090AA?
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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