What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model FH4ANB004000AAAA 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 FH4ANB004000AAAA.

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 P291-1503 for FH4ANB004000AAAA

Name: OEM Carrier Single Run Capacitor P291-1503 for FH4ANB004000AAAA
Brand: Carrier
SKU: CARRIE-FH4ANB004000AAAA-CAPACITOR-P291-1503
Price: 21.00 USD
Availability: InStock

SKU: CARRIE-FH4ANB004000AAAA-CAPACITOR-P291-1503 Brand: Carrier

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OEM Carrier Single Run Capacitor P291-1503 for Model FH4ANB004000AAAA

This is the factory OEM single run capacitor (part number P291-1503) designed as a direct replacement for the Carrier FH4ANB004000AAAA air handler. A single run capacitor provides the continuous electrical charge needed to keep a motor running efficiently after startup. When this capacitor begins to fail, you may notice the system humming without the motor engaging, sluggish startup, intermittent shutdowns, or a complete no-start condition — all signs it's time for a factory-matched replacement.

Specs: Single run capacitor | OEM part number P291-1503 | Factory-matched MFD and voltage rating | Designed to meet exact Carrier engineering tolerances for the FH4ANB004000AAAA air handler
OEM vs Generic: This OEM capacitor is manufactured to Carrier's precise ±5% tolerance specification. Aftermarket alternatives often fall outside acceptable MFD range, leading to increased motor heat, shortened component life, and potential compressor or blower motor failure.
Install Difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals. Recommended tools: 1/4" nut driver, insulated needle-nose pliers, and a multimeter to verify discharge. Photograph all wiring connections prior to removal to ensure correct reinstallation.
Warranty: Backed by a 1-year OEM factory warranty. In-stock and ships same business day from our fulfillment center.

Compatibility: Engineered specifically for the Carrier FH4ANB004000AAAA air handler. Always verify the MFD and voltage rating on your unit's data plate before ordering to confirm fitment. Our parts specialists are available to verify compatibility before you complete your purchase — order with confidence from NationalHVACParts.com.

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 $75
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...

$21.00

Frequently Asked Questions

Does this Capacitor fit my Carrier FH4ANB004000AAAA?

Yes. This is the factory-specified OEM capacitor for the Carrier FH4ANB004000AAAA. 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 FH4ANB004000AAAA?

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 P291-1503 for FH4ANB004000AAAA

OEM Carrier Single Run Capacitor P291-1503 for Model FH4ANB004000AAAA

Shipping Information

Return Policy

Frequently Asked Questions