Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Start Capacitor P281-8806 for PH4RNG018000BAAA
Carrier

OEM Carrier Start Capacitor P281-8806 for PH4RNG018000BAAA

SKU: CARRIE-PH4RNG018000BAAA-CAPACITOR-P281-8806 Brand: Carrier
✓ Guaranteed to fit PH4RNG018000BAAA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Start Capacitor P281-8806 for Model PH4RNG018000BAAA

This is the factory-specified OEM start capacitor for the Carrier PH4RNG018000BAAA heat pump system. The start capacitor delivers a high-energy burst of stored electrical charge to kick the compressor into motion at startup. Without a properly functioning start capacitor, the compressor may hum loudly, fail to start, draw excessive amperage, or trip the circuit breaker — all signs that this component needs immediate replacement.

  • Specs: OEM Part Number P281-8806 | Factory-matched microfarad (MFD) and voltage ratings | Engineered to exact Carrier specifications for the PH4RNG018000BAAA platform
  • OEM vs Generic: This OEM unit is built to Carrier's factory tolerance standards. Aftermarket start capacitors frequently ship with looser MFD tolerances, placing added strain on the compressor motor windings and shortening overall system life.
  • Install Difficulty: 3/5 — Always shut off power at the disconnect and breaker before beginning work. Discharge the capacitor fully using an insulated resistor before handling. Tools needed: insulated screwdrivers, needle-nose pliers, multimeter, and a capacitor discharge tool. Photograph all wiring connections before disconnecting.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our climate-controlled warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model PH4RNG018000BAAA. Always verify the MFD and voltage ratings on your unit's data plate against this part before ordering to ensure correct fitment. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you order — order with confidence and get back to comfort fast.

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 PH4RNG018000BAAA?
Yes. This is the factory-specified OEM capacitor for the Carrier PH4RNG018000BAAA. 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 PH4RNG018000BAAA?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online