What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model PH1ZNA036000AAAA 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 PH1ZNA036000AAAA.

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.

OEM Carrier Dual Run Capacitor 40+5 MFD 370V for PH1ZNA036000AAAA

Carrier

OEM Carrier Dual Run Capacitor 40+5 MFD 370V for PH1ZNA036000AAAA

Name: OEM Carrier Dual Run Capacitor 40+5 MFD 370V for PH1ZNA036000AAAA
Brand: Carrier
SKU: CARRIE-PH1ZNA036000AAAA-CAPACITOR-P291-4053RS
Price: 32.00 USD
Availability: InStock

SKU: CARRIE-PH1ZNA036000AAAA-CAPACITOR-P291-4053RS Brand: Carrier

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OEM Carrier Dual Run Capacitor 40+5 MFD 370V for Model PH1ZNA036000AAAA

This OEM dual run capacitor (Carrier part# P291-4053RS, with companion single run capacitor P291-1503) is the factory-specified replacement for the Carrier PH1ZNA036000AAAA package heat pump unit. The dual run capacitor stores and delivers the electrical charge required to start and sustain both the compressor and the condenser fan motor simultaneously from a single enclosure. When this capacitor begins to fail, you'll typically notice the system humming but not starting, short-cycling within the first few minutes of operation, or warm air blowing from a unit that should be cooling. Left unaddressed, a weak capacitor accelerates compressor wear and can lead to a far more expensive repair.

Specs: 40+5 MFD (microfarad) | 370 VAC rated | Round case | Three-terminal (HERM / FAN / COM) | Factory-matched ±5% tolerance | 50/60 Hz | Non-PCB dielectric fluid | UL approved
OEM vs Generic: OEM Carrier capacitors (manufactured by GE/Genteq for Carrier) are performance-tested to 60,000 service hours and built to exact factory tolerance. Generic aftermarket capacitors often carry a ±10% MFD tolerance, which accelerates motor winding stress and can shorten compressor life — a risk not worth taking on a 3-ton package unit.
Install difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals (use a 20kΩ resistor or insulated screwdriver). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance setting). Photograph all wiring connections before disconnecting. This job typically takes 15–30 minutes for a competent DIYer.
Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse. Bundle with companion single run capacitor P291-1503 (15 MFD 370V oval) to complete a full capacitor service on your PH1ZNA036000AAAA.

Compatibility: Engineered for the Carrier PH1ZNA036000AAAA 3-ton package heat pump. Verify the MFD rating and voltage on your unit's data plate before ordering — the compressor side must match 40 MFD and the fan side must match 5 MFD. Voltage rating of 370V or higher is acceptable. Not sure it fits? Our HVAC parts team verifies fitment before you order — reach out before checkout.

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 Capacitor 4...

$32.00

Frequently Asked Questions

Does this Capacitor fit my Carrier PH1ZNA036000AAAA?

Yes. This is the factory-specified OEM capacitor for the Carrier PH1ZNA036000AAAA. 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 PH1ZNA036000AAAA?

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 Dual Run Capacitor 40+5 MFD 370V for PH1ZNA036000AAAA

OEM Carrier Dual Run Capacitor 40+5 MFD 370V for Model PH1ZNA036000AAAA

Shipping Information

Return Policy

Frequently Asked Questions