What MFD capacitor do I need for my Carrier AC?

The correct replacement for Carrier model PY1RPA048115AAWB 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 PY1RPA048115AAWB.

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 4 MFD 370V for PY1RPA048115AAWB

Name: OEM Carrier Single Run Capacitor 4 MFD 370V for PY1RPA048115AAWB
Brand: Carrier
SKU: CARRIE-PY1RPA048115AAWB-CAPACITOR-HC30GB230
Price: 15.95 USD
Availability: InStock

SKU: CARRIE-PY1RPA048115AAWB-CAPACITOR-HC30GB230 Brand: Carrier

✓ Guaranteed to fit PY1RPA048115AAWB — or your money back. Terms

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OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1RPA048115AAWB

This OEM single run capacitor is the factory-specified replacement for the Carrier PY1RPA048115AAWB packaged unit's draft inducer motor circuit. Cross-referenced under part numbers HC30GB230, P291-0403, and P291-1503, this oval 4 MFD 370V capacitor provides the phase-shifted current that keeps the inducer motor running continuously during each heating cycle. When it fails, you'll typically see the draft inducer motor hum without spinning, fail to prove combustion airflow, or trigger a pressure switch lockout — all symptoms that shut down heating before ignition even begins.

Specs: 4 MFD (microfarad) | 370V rated | Oval case | Single run configuration | 50/60 Hz | Factory-matched ±5% tolerance
OEM vs Generic: This is the genuine Carrier/Totaline capacitor, tested to 60,000 service hours per United Technologies application parameters. Generic alternatives often carry wider tolerance ratings, which can accelerate inducer motor wear over time.
Install difficulty: 2/5 — Discharge the old capacitor before touching terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Always photograph wire positions before disconnecting. The inducer motor capacitor is typically mounted on or near the inducer housing bracket.
Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Directly fits Carrier model PY1RPA048115AAWB packaged units using the HC30GB230 draft inducer motor assembly. This capacitor is also referenced as P291-0403 and P291-1503 — all three part numbers confirm the same 4 MFD 370V oval specification. Verify the MFD and voltage rating on your existing capacitor's label before ordering. Our fitment team is available to confirm compatibility before you buy.

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 Single Run Capacitor...

$15.95

Frequently Asked Questions

Does this Capacitor fit my Carrier PY1RPA048115AAWB?

Yes. This is the factory-specified OEM capacitor for the Carrier PY1RPA048115AAWB. 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 PY1RPA048115AAWB?

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 4 MFD 370V for PY1RPA048115AAWB

OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1RPA048115AAWB

Shipping Information

Return Policy

Frequently Asked Questions