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OEM Carrier Single Run Capacitor 4 MFD 370V for PY2PEB042090AB
Carrier

OEM Carrier Single Run Capacitor 4 MFD 370V for PY2PEB042090AB

SKU: CARRIE-PY2PEB042090AB-CAPACITOR-P291-0403 Brand: Carrier
✓ Guaranteed to fit PY2PEB042090AB — or your money back. Terms

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OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY2PEB042090AB

This is the factory-specified OEM single run capacitor for the Carrier PY2PEB042090AB packaged gas/electric unit. Run capacitors remain in the circuit continuously while the motor operates, supplying the phase-shifted current that keeps the condenser fan motor spinning efficiently. When this capacitor weakens or fails, you'll notice classic symptoms: a humming condenser fan that won't spin up, warm air from the supply registers, or the unit short-cycling and tripping on thermal overload. Replacing this small but critical component is one of the most common — and most cost-effective — HVAC service calls.

  • Specs: 4 MFD (microfarad) | 370 VAC | Oval case | Single run | 50/60 Hz | Factory-matched ±5% tolerance — OEM part number P291-0403
  • OEM vs Generic: This OEM Carrier/Totaline capacitor is manufactured to exact factory tolerances and tested to 60,000 service hours. Generic capacitors often carry ±10% MFD tolerance, accelerating motor wear and shortening equipment life.
  • Install difficulty: 2/5 — Disconnect power at the breaker and allow the capacitor to discharge fully before touching terminals. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting terminals to ensure correct reinstallation.
  • Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY2PEB042090AB packaged gas/electric unit. This listing covers the condenser fan motor run capacitor (P291-0403, 4 MFD 370V). A companion single run capacitor P291-1503 (15 MFD 370V) is also available for the compressor circuit on this model — see our related listings. Always verify the MFD and voltage ratings on your existing capacitor's label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — reach out via chat or phone. Order today and we'll ship it out the same business day.

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 PY2PEB042090AB?
Yes. This is the factory-specified OEM capacitor for the Carrier PY2PEB042090AB. 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 PY2PEB042090AB?
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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