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OEM Carrier Single Run Capacitor 4/15 MFD 370V — PY2PPB048115AB
Carrier

OEM Carrier Single Run Capacitor 4/15 MFD 370V — PY2PPB048115AB

SKU: CARRIE-PY2PPB048115AB-CAPACITOR-P291-0403 Brand: Carrier
✓ Guaranteed to fit PY2PPB048115AB — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Single Run Capacitor 4 MFD & 15 MFD 370V for Model PY2PPB048115AB

These genuine OEM Carrier single run capacitors are the factory-specified replacements for the Carrier PY2PPB048115AB packaged unit. Run capacitors stay energized throughout the entire operating cycle, providing the sustained phase-shift current that keeps the condenser fan motor and compressor running efficiently. When a run capacitor weakens or fails, the affected motor draws excess current, overheats, and ultimately trips on thermal protection — or refuses to start altogether. Common symptoms include a loud hum with no motor rotation, warm air output, short-cycling, or visible bulging and leaking on the capacitor body.

  • Specs — P291-0403: 4 MFD (microfarad) | 370 VAC | Oval case | 50/60 Hz | Replaces HC90AA004, HC91CA004, 97F5704 | UL Approved with Pressure Sensitive interrupter
  • Specs — P291-1503: 15 MFD (microfarad) | 370 VAC | Oval case | 50/60 Hz | Single run configuration | Factory-matched ±5% tolerance
  • OEM vs Generic: Genuine Carrier/Totaline capacitors are reliability-tested to 60,000 service hours and use high-grade metallized polypropylene film. Generic alternatives often carry wider MFD tolerance (±10%), which accelerates motor winding wear and shortens compressor life — especially critical in a packaged rooftop application like the PY2PPB048115AB.
  • Install difficulty: 2/5 — Shut off power at the disconnect and allow 5 minutes for the capacitor to discharge fully before touching terminals. Tools needed: insulated screwdriver, 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Always photograph all wiring connections before disconnecting the old unit. Match the MFD and VAC rating exactly — do not substitute a higher or lower MFD value.
  • Warranty: 1-year OEM factory warranty on both P291-0403 and P291-1503. Ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY2PPB048115AB packaged gas/electric unit (4-ton, 115,000 BTU heating). Both capacitors are sold individually — select the correct part number (P291-0403 or P291-1503) for your specific motor circuit. Verify MFD and voltage against your unit's data plate before ordering. Not sure which capacitor you need? Our HVAC parts team verifies fitment before you buy — contact us today for same-day assistance.

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

Frequently Asked Questions

Does this Capacitor fit my Carrier OEM Carrier Single Run Capacitor 4/15 MFD 370V — PY2PPB048115AB?
Yes. This is the factory-specified OEM capacitor for the Carrier OEM Carrier Single Run Capacitor 4/15 MFD 370V — PY2PPB048115AB. 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 OEM Carrier Single Run Capacitor 4/15 MFD 370V — PY2PPB048115AB?
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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Mike Rivera
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