What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model HA1CJX048000ABAA 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 HA1CJX048000ABAA.

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 Dual Run & Start Capacitor Kit for HA1CJX048000ABAA

Name: OEM Carrier Dual Run & Start Capacitor Kit for HA1CJX048000ABAA
Brand: Carrier
SKU: CARRIE-HA1CJX048000ABAA-CAPACITOR-P291-6053RS
Price: 25.00 USD
Availability: InStock

SKU: CARRIE-HA1CJX048000ABAA-CAPACITOR-P291-6053RS Brand: Carrier

✓ Guaranteed to fit HA1CJX048000ABAA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

OEM Carrier Dual Run & Start Capacitor Kit for Model HA1CJX048000ABAA

This OEM capacitor kit includes both the dual run capacitor (P291-6053RS) and the start capacitor (P281-8806) factory-specified for the Carrier HA1CJX048000ABAA 4-ton split-system condenser. The dual run capacitor keeps the compressor and condenser fan motor running at peak efficiency, while the start capacitor delivers the extra electrical boost needed to get the compressor spinning under load. When either component fails, you'll experience symptoms such as a loud hum with no motor movement, the system tripping the breaker, short-cycling within the first few minutes of operation, or a compressor that struggles to start on hot days.

Included Parts: P291-6053RS Dual Run Capacitor (supports compressor + condenser fan motor simultaneously) and P281-8806 Start Capacitor (provides hard-start assist for the compressor) — both factory-matched to HA1CJX048000ABAA specifications
OEM vs Generic: Genuine Carrier OEM capacitors are manufactured to ±3% MFD tolerance, ensuring precise electrical delivery and protecting compressor windings from voltage stress. Aftermarket generics often run ±10% tolerance, which can shorten compressor life and void equipment warranties.
Install Difficulty: 2/5 — Always disconnect power and discharge the capacitor fully before handling terminals (use an insulated resistor or discharge tool). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before removal. Start capacitor typically mounts in series with a hard-start relay — confirm relay condition before reinstalling.
Warranty & Shipping: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our climate-controlled warehouse — no delays, no substitutions.

Compatibility: This kit is engineered specifically for the Carrier HA1CJX048000ABAA 4-ton (048) single-phase condenser. Always verify the MFD and voltage ratings printed on your existing capacitors against the data plate inside your unit's electrical compartment before ordering. If you need help confirming fitment, our HVAC parts specialists will verify compatibility before your order ships.

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 Dual Run & Start Cap...

$25.00

Frequently Asked Questions

Does this Capacitor fit my Carrier HA1CJX048000ABAA?

Yes. This is the factory-specified OEM capacitor for the Carrier HA1CJX048000ABAA. 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 HA1CJX048000ABAA?

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.

Menu

OEM Carrier Dual Run & Start Capacitor Kit for HA1CJX048000ABAA

OEM Carrier Dual Run & Start Capacitor Kit for Model HA1CJX048000ABAA

Shipping Information

Return Policy

Frequently Asked Questions