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OEM Carrier Single Run Capacitor 7.5 MFD 440V — UPFLOW100U4819A
Carrier

OEM Carrier Single Run Capacitor 7.5 MFD 440V — UPFLOW100U4819A

SKU: CARRIE-UPFLOW100U4819A-CAPACITOR-P291-0753 Brand: Carrier
✓ Guaranteed to fit UPFLOW100U4819A — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Single Run Capacitor 7.5 MFD 440V for Model UPFLOW100U4819A

This OEM single run capacitor is the factory-specified replacement for the Carrier UPFLOW100U4819A upflow furnace. The run capacitor stores and releases the electrical charge that starts and sustains the blower motor during each heating cycle. When it degrades or fails, you'll typically notice the blower humming without spinning, the furnace short-cycling, or a complete failure to circulate air — all of which can trigger a safety lockout and leave you without heat. Replacing this small but critical component is one of the most cost-effective furnace repairs available.

  • Specs: 7.5 MFD (microfarad) | 370/440V rated | Oval form factor | Factory-matched tolerance | UL approved pressure-sensitive interrupter | RoHS compliant | Tested to 60,000 service hours
  • OEM vs Generic: This is a genuine OEM Carrier capacitor (P291-0753 / superseded by P291-0754), manufactured to exact factory tolerances. Generic capacitors often carry wider MFD variance (±10%), which accelerates motor bearing wear and shortens blower motor life over time.
  • Install difficulty: 2/5 — Always discharge the capacitor before touching terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting the old unit. The oval form factor fits the original mounting bracket with no modification.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse — order by 3 PM local time for same-day dispatch.

Compatibility: Fits Carrier model UPFLOW100U4819A upflow gas furnace. OEM part number P291-0753 has been superseded by P291-0754 — both numbers are fulfilled with the current production unit at identical 7.5 MFD / 440V specs. Always verify the MFD rating and voltage on your unit's data plate or existing capacitor 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

Frequently Asked Questions

Does this Capacitor fit my Carrier OEM Carrier Single Run Capacitor 7.5 MFD 440V — UPFLOW100U4819A?
Yes. This is the factory-specified OEM capacitor for the Carrier OEM Carrier Single Run Capacitor 7.5 MFD 440V — UPFLOW100U4819A. 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 7.5 MFD 440V — UPFLOW100U4819A?
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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