What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model PG8MAA036045ABJA is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Carrier equipment which lists the model number PG8MAA036045ABJA.

My AC hums but will not start. What part do I need?

An AC that hums but will not start is the classic symptom of a failed capacitor. The capacitor provides the electrical boost needed to start the compressor and fan motors. When it fails, you hear the hum of the motor trying to start but it cannot overcome inertia. Other symptoms include the fan spinning slowly, the AC cycling on and off rapidly, or a visibly swollen or leaking capacitor. Replacement cost: $15 to $80 for the part, DIY in 30 minutes.

Is this capacitor compatible with Bryant or Payne systems too?

Many Carrier parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Carrier

OEM Carrier Single Run Capacitor P291-1003 for PG8MAA036045ABJA

Name: OEM Carrier Single Run Capacitor P291-1003 for PG8MAA036045ABJA
Brand: Carrier
SKU: CARRIE-PG8MAA036045ABJA-CAPACITOR-P291-1003
Price: 20.00 USD
Availability: InStock

SKU: CARRIE-PG8MAA036045ABJA-CAPACITOR-P291-1003 Brand: Carrier

✓ Guaranteed to fit PG8MAA036045ABJA — or your money back. Terms

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OEM Carrier Single Run Capacitor P291-1003 for Model PG8MAA036045ABJA

This is the factory OEM single run capacitor for the Carrier PG8MAA036045ABJA gas furnace. The run capacitor provides the sustained phase-shifted current that keeps the blower motor spinning at proper speed and efficiency. When this capacitor fails, symptoms include a blower motor that hums but won't start, a motor that runs slowly or overheats, or a furnace that trips on high-limit lockout due to insufficient airflow. Replacing it with the correct OEM part (P291-1003) ensures the motor receives exactly the capacitance it was engineered for — protecting your investment and restoring full system performance.

OEM Part Number: P291-1003 | Single run capacitor | Factory-specified MFD and voltage rating matched to the Carrier PG8MAA036045ABJA blower motor
OEM vs Generic: OEM capacitors are manufactured to strict ±5% tolerance, matching the exact motor specs. Generic replacements often carry a ±10% tolerance, which can cause motor strain, premature bearing failure, and shortened compressor or blower life.
Install Difficulty: 2/5 — Discharge the capacitor fully before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter for verification. Always photograph existing wiring before disconnecting the old capacitor.
Warranty & Shipping: Backed by a 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed and tested for Carrier model PG8MAA036045ABJA. Always verify the MFD and voltage rating on your unit's data plate or existing capacitor before ordering to confirm fitment. Our parts specialists are available to verify compatibility before you buy — no guesswork required.

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

OEM Carrier Single Run Capacitor...

$20.00

Frequently Asked Questions

Does this Capacitor fit my Carrier PG8MAA036045ABJA?

Yes. This is the factory-specified OEM capacitor for the Carrier PG8MAA036045ABJA. 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 PG8MAA036045ABJA?

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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OEM Carrier Single Run Capacitor P291-1003 for PG8MAA036045ABJA

OEM Carrier Single Run Capacitor P291-1003 for Model PG8MAA036045ABJA

Shipping Information

Return Policy

Frequently Asked Questions