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OEM Carrier Single Run Capacitor P291-0503 for PG9MAB036040AASA
Carrier

OEM Carrier Single Run Capacitor P291-0503 for PG9MAB036040AASA

SKU: CARRIE-PG9MAB036040AASA-CAPACITOR-P291-0503 Brand: Carrier
✓ Guaranteed to fit PG9MAB036040AASA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Single Run Capacitor P291-0503 for Model PG9MAB036040AASA

This OEM single run capacitor (part number P291-0503) is the factory-specified replacement for the Carrier PG9MAB036040AASA gas furnace. The run capacitor continuously supports the blower motor during operation by stabilizing voltage and maintaining the phase shift needed to keep the motor spinning efficiently. When this capacitor begins to fail, you'll typically notice symptoms such as a humming motor that won't start, a blower that starts slowly or intermittently, or a furnace that short-cycles due to overheating caused by reduced airflow.

  • Specs: Single run capacitor | Factory OEM-matched MFD and voltage rating | Designed to meet exact Carrier factory tolerance specifications for the PG9MAB036040AASA platform
  • OEM vs Generic: This is a genuine OEM Carrier part manufactured to exacting factory standards. Generic capacitors often deviate ±10% from rated MFD, which accelerates motor winding wear, reduces efficiency, and can shorten the operational lifespan of your blower motor.
  • Install Difficulty: 2/5 — Capacitors store a dangerous electrical charge even after power is disconnected. Always discharge the capacitor safely before handling. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, a capacitor discharge tool or insulated resistor, and a multimeter to verify the replacement unit before reinstalling the panel.
  • Warranty: Backed by a 1-year OEM factory warranty. Orders placed by 3 PM local time ship same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PG9MAB036040AASA gas furnace. Always confirm the MFD and voltage rating printed on your existing capacitor match the replacement before installation. Our HVAC parts specialists are available to verify fitment for your exact unit — contact us before ordering if you have any questions.

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 PG9MAB036040AASA?
Yes. This is the factory-specified OEM capacitor for the Carrier PG9MAB036040AASA. 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 PG9MAB036040AASA?
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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