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OEM Carrier Single Run Capacitor P291-1003 for PF1MNB036008AAAA
Carrier

OEM Carrier Single Run Capacitor P291-1003 for PF1MNB036008AAAA

SKU: CARRIE-PF1MNB036008AAAA-CAPACITOR-P291-1003 Brand: Carrier
✓ Guaranteed to fit PF1MNB036008AAAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Single Run Capacitor P291-1003 for Model PF1MNB036008AAAA

This is the OEM factory-specified single run capacitor (part number P291-1003) for the Carrier PF1MNB036008AAAA fan coil unit. The run capacitor maintains a continuous phase-shifted current to keep the motor running efficiently after startup. A failing or failed capacitor is one of the most common causes of HVAC motor problems — symptoms include a humming compressor or motor that won't spin, hard starts, frequent short-cycling, or a unit that trips on thermal overload and shuts down. Replacing with a factory-matched OEM part ensures your system runs within manufacturer specifications and protects connected motor windings from voltage stress.

  • Specs: Single run capacitor | Factory-matched MFD rating | Compatible voltage rating per OEM spec | Replaces OEM part number P291-1003 exactly
  • OEM vs Generic: This is a genuine Carrier OEM capacitor with a tightly controlled ±3% MFD tolerance. Aftermarket generic capacitors commonly carry ±10% tolerances, which can accelerate motor wear, reduce efficiency, and void equipment warranties over time.
  • Install Difficulty: 2/5 — A single run capacitor is a straightforward swap, but safety is critical. Always disconnect power at the breaker and discharge the capacitor before handling terminals. Tools needed: multimeter, flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers. Photograph all wiring connections before removal.
  • Warranty: 1-year OEM factory warranty. Orders placed before our daily cutoff ship the same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PF1MNB036008AAAA fan coil unit. Always verify the MFD and voltage rating on your existing capacitor's label or unit data plate before completing your order. Not sure it fits? Our HVAC parts specialists are available to confirm fitment before you buy — contact us before ordering.

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 PF1MNB036008AAAA?
Yes. This is the factory-specified OEM capacitor for the Carrier PF1MNB036008AAAA. 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 PF1MNB036008AAAA?
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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