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OEM Carrier Contactor 1-Pole 30A 24V for PH10JA048000AAAA
Carrier

OEM Carrier Contactor 1-Pole 30A 24V for PH10JA048000AAAA

SKU: CARRIE-PH10JA048000AAAA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit PH10JA048000AAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 30 Amp 24V Coil (HN51KC024) for Model PH10JA048000AAAA

This is the genuine OEM Carrier contactor (part number HN51KC024), factory-specified for the Carrier PH10JA048000AAAA packaged heat pump unit. The contactor is a high-voltage relay that receives a low-voltage (24V) signal from the thermostat and switches line-voltage power to the compressor and/or fan motor. When the contactor fails — due to pitted or burned contacts, a welded-shut coil, or an open coil — the unit will either refuse to turn on entirely, run continuously without shutting off, or trip the breaker. Replacing a faulty contactor is one of the most common and cost-effective HVAC repairs available.

  • Specs: 1-pole configuration | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 24 VAC coil voltage | 50/60 Hz rated | Factory-matched OEM tolerances
  • OEM vs Generic: This genuine OEM Carrier contactor is built to exact factory specifications for the PH10JA048000AAAA, ensuring correct coil pull-in voltage, contact gap, and amp rating. Generic contactors may use thinner contact material, leading to premature pitting and repeat failures — especially under heavy compressor load.
  • Install difficulty: 2/5 — Always disconnect and lock out power at the breaker before starting. Photograph all existing wiring before disconnecting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Confirm 24V coil signal at the contactor terminals before replacing to rule out a thermostat or control board issue.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PH10JA048000AAAA packaged heat pump. Also cross-references with Bryant, Payne, and Day & Night units calling for HN51KC024. Always verify your unit's wiring diagram and parts list before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any doubts.

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 Contactor fit my Carrier PH10JA048000AAAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH10JA048000AAAA. 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 contactor on my Carrier PH10JA048000AAAA?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.
My AC clicks but the compressor won’t turn on. What’s wrong?
Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.
Is this contactor 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 contactor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
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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