What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model PG9MAA048100AFKA 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 PG9MAA048100AFKA.

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 3 MFD 250V for PG9MAA048100AFKA

Name: OEM Carrier Single Run Capacitor 3 MFD 250V for PG9MAA048100AFKA
Brand: Carrier
SKU: CARRIE-PG9MAA048100AFKA-CAPACITOR-HC91PD001
Price: 17.00 USD
Availability: InStock

SKU: CARRIE-PG9MAA048100AFKA-CAPACITOR-HC91PD001 Brand: Carrier

✓ Guaranteed to fit PG9MAA048100AFKA — or your money back. Terms

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OEM Carrier Single Run Capacitor 3 MFD 250V for Model PG9MAA048100AFKA (HC91PD001)

This is the genuine OEM Carrier single run capacitor (part number HC91PD001), factory-specified for the Carrier PG9MAA048100AFKA gas furnace. The run capacitor stores and releases the electrical charge needed to start and sustain the draft inducer blower motor. When this capacitor degrades or fails, you may notice the inducer motor humming without spinning, running noisily, overheating and tripping the thermal cutout, or failing to start entirely — all of which can prevent the furnace from completing its ignition sequence.

Specs: 3 MFD (microfarad) | 250V AC rated | Rectangular/square case | ±5% tolerance | 50/60 Hz | Manufactured by ASC Capacitors (CMKS-X345)
OEM vs Generic: This is a genuine Carrier OEM part, built to exact factory tolerances. Aftermarket capacitors frequently drift outside ±10% MFD tolerance, causing premature inducer motor wear and repeated failures — especially in high-cycle furnace applications.
Install difficulty: 2/5 — Discharge the capacitor fully before touching terminals. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, multimeter (capacitance setting). Always photograph existing wiring before disconnecting. The rectangular form factor requires matching the correct terminal orientation on reinstall.
Warranty: 1-year OEM manufacturer warranty against defects. Orders ship same business day from our stocked warehouse.

Compatibility: Designed for the Carrier PG9MAA048100AFKA gas furnace and compatible Carrier, Bryant, and Payne models using the HC91PD001 inducer motor run capacitor. Always verify the MFD rating, voltage, and capacitor shape on your unit's data plate or existing capacitor before ordering. Our fitment team is available to confirm 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...

$17.00

Frequently Asked Questions

Does this Capacitor fit my Carrier PG9MAA048100AFKA?

Yes. This is the factory-specified OEM capacitor for the Carrier PG9MAA048100AFKA. 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 PG9MAA048100AFKA?

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 3 MFD 250V for PG9MAA048100AFKA

OEM Carrier Single Run Capacitor 3 MFD 250V for Model PG9MAA048100AFKA (HC91PD001)

Shipping Information

Return Policy

Frequently Asked Questions