What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model Model FB5ANA042000AAAA 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 Model FB5ANA042000AAAA.

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 run 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.

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OEM Carrier Run Capacitor P291-0703 for Model FB5ANA042000AAAA

Name: OEM Carrier Run Capacitor P291-0703 for Model FB5ANA042000AAAA
Brand: Carrier
SKU: carrier-run-capacitor-fb5ana042000aaaa
Price: 31.24 USD
Availability: InStock

SKU: carrier-run-capacitor-fb5ana042000aaaa Brand: Carrier

$31.24

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Run Capacitor P291-0703 for Model FB5ANA042000AAAA

This OEM Carrier run capacitor provides the steady electrical charge your FB5ANA042000AAAA fan coil's blower motor relies on to start and run efficiently. Because capacitors are one of the most common HVAC components to fail, a degraded or bulging unit often reveals itself through a humming motor that won't spin, delayed startups, overheating, or a blower that stops entirely. This genuine Carrier replacement is rated to the exact microfarad and voltage specification of the FB5ANA042000AAAA, protecting your motor from the accelerated wear mismatched aftermarket capacitors cause. Installation is among the easier HVAC fixes: disconnect power at the breaker, safely discharge the old capacitor, note the terminal wiring, and connect the new one. Most techs finish in 15-20 minutes, though we recommend a professional handle the stored charge. Keep your three-and-a-half-ton air handler running cool and quiet with a capacitor built to factory standards. Ships same-day on orders before 3PM CST.

Compatibility

This part is compatible with Carrier model FB5ANA042000AAAA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 support@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Run Capacitor fit my Carrier Model FB5ANA042000AAAA?

Yes. This is the factory-specified OEM run capacitor for the Carrier Model FB5ANA042000AAAA. 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 run capacitor on my Carrier Model FB5ANA042000AAAA?

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 run 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 run 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 Run Capacitor P291-0703 for Model FB5ANA042000AAAA

OEM Carrier Run Capacitor P291-0703 for Model FB5ANA042000AAAA

Compatibility

Shipping

Shipping Information

Return Policy

Frequently Asked Questions