What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model PY1PEB036090AAAA AC Unit 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 PY1PEB036090AAAA AC Unit.

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 45+5 MFD Run Capacitor for PY1PEB036090AAAA AC Unit

Name: OEM Carrier 45+5 MFD Run Capacitor for PY1PEB036090AAAA AC Unit
Brand: Carrier
SKU: CARRIE-PY1PEB036090AAAA-CAPACITOR-P291-0403
Price: 56.95 USD
Availability: InStock

SKU: CARRIE-PY1PEB036090AAAA-CAPACITOR-P291-0403 Brand: Carrier

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OEM Carrier Run Capacitor for PY1PEB036090AAAA AC Unit

The run capacitor stores and releases electrical energy to keep your Carrier PY1PEB036090AAAA's compressor and condenser fan motor spinning efficiently after start-up. It provides the phase shift the motor windings need to run smoothly. When a run capacitor weakens or fails, you'll notice classic symptoms: the outdoor fan won't spin (or needs a push to start), the compressor hums but won't kick on, the unit short-cycles on its overload, the breaker trips, or cooling output drops while energy use climbs. This is a dual-run or single-run capacitor depending on configuration, rated to OEM specification with a tight ±5% tolerance and a 370/440 VAC rating. Common values for this platform fall in the 35/5 to 45/5 MFD range — always match the MFD and voltage stamped on your existing cap. The metallized polypropylene film and sealed oval/round can are built for continuous outdoor thermal cycling. OEM matters most for capacitors. Generic aftermarket caps often ship with ±10-15% tolerance and lower-grade dielectric film. A capacitor that drifts even 10% out of spec delivers the wrong phase current, stressing the compressor and fan windings, raising operating temperature, and quietly shortening the life of parts far more expensive than the cap itself. Installation difficulty: 2 of 5. Tools needed: 1/4" nut driver, insulated screwdriver, needle-nose pliers, and a multimeter with capacitance (MFD) mode. SAFETY: a charged capacitor stores a lethal shock even with all power off — ALWAYS discharge it across the terminals with an insulated screwdriver (or resistor) before touching the leads. Cut power at the disconnect and breaker first. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PY1PEB036090AAAA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.

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 45+5 MFD Run Capacit...

$56.95

Frequently Asked Questions

Does this Capacitor fit my Carrier PY1PEB036090AAAA AC Unit?

Yes. This is the factory-specified OEM capacitor for the Carrier PY1PEB036090AAAA AC Unit. 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 PY1PEB036090AAAA AC Unit?

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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