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OEM Carrier Single Run Capacitor for PY2PPB030040AA — P291-0403
Carrier

OEM Carrier Single Run Capacitor for PY2PPB030040AA — P291-0403

SKU: CARRIE-PY2PPB030040AA-CAPACITOR-P291-0403 Brand: Carrier
✓ Guaranteed to fit P291-0403 — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Single Run Capacitor for Model PY2PPB030040AA

This OEM single run capacitor is the factory-specified replacement for the Carrier PY2PPB030040AA packaged heat pump unit. A single run capacitor provides the continuous phase-shifted current required to keep either the compressor or the fan motor running at peak efficiency. When this capacitor begins to fail, you'll typically notice symptoms such as a loud hum with no motor start, intermittent short-cycling, slow compressor spin-up, or a complete failure of one motor while the other continues to operate. Left unreplaced, a weak capacitor forces motors to draw excess amperage, dramatically shortening compressor and motor life.

  • OEM Part Numbers: P291-0403 (primary) | P291-1503 (alternate/superseded) — both are factory-authorized for this application
  • OEM vs Generic: This is a genuine Carrier OEM capacitor manufactured to exact factory tolerances (±3% MFD). Aftermarket capacitors commonly run ±10% MFD variance, which increases motor heat, reduces efficiency, and accelerates wear on compressor windings.
  • Install Difficulty: 2/5 — Always discharge the capacitor before handling — it can hold a lethal charge even after power is off. Tools needed: insulated screwdriver, 1/4" nut driver, needle-nose pliers, and a multimeter (to verify capacitance before and after). Photograph all wiring connections before disconnecting terminals.
  • Warranty & Shipping: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM drop-in replacement for the Carrier PY2PPB030040AA packaged heat pump system. Always cross-reference the MFD rating and voltage printed on your existing capacitor's data label before ordering to confirm an exact match. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.

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 PY2PPB030040AA — P291-0403?
Yes. This is the factory-specified OEM capacitor for the Carrier PY2PPB030040AA — P291-0403. 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 PY2PPB030040AA — P291-0403?
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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