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 Contactor 1-Pole 24V 25A for PH10JA03000GAEAA
Carrier

OEM Carrier Contactor 1-Pole 24V 25A for PH10JA03000GAEAA

SKU: CARRIE-PH10JA03000GAEAA-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PH10JA03000GAEAA — 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 1-Pole Contactor 24V 25A — HN51KB024 for Model PH10JA03000GAEAA

This is the genuine OEM replacement contactor for the Carrier PH10JA03000GAEAA heat pump/air conditioning system. The contactor is the high-voltage relay that closes the circuit to the compressor and condenser fan motor every time your thermostat calls for cooling or heating. When it fails, the most common symptoms are an AC unit that won't turn on at all, compressor that won't start despite the thermostat calling, audible chattering or buzzing at the contactor, or a system that trips the breaker repeatedly. Replacing a worn contactor is one of the most cost-effective HVAC repairs available.

  • Specs: 1-Pole | 24V 50/60Hz coil voltage | 25 FLA (Full Load Amps) | 150 LRA (Locked Rotor Amps) | Factory-matched OEM tolerances | Part Number: HN51KB024
  • OEM vs Generic: This is a genuine Carrier OEM contactor — not an aftermarket substitute. OEM contactors are built to factory contact gap, coil pull-in voltage, and arc suppression specs. Generic contactors may chatter at low voltage or fail prematurely under high cycling loads.
  • Install Difficulty: 2/5 — Turn off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wire connections before removing the old contactor. Snap-in terminal replacement typically takes 15–30 minutes.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed as the factory-specified contactor for Carrier model PH10JA03000GAEAA. Verify your unit's data plate and existing contactor pole count and coil voltage before ordering. Our fitment team is available to confirm compatibility — just reach out before you order. Order today and get same-day shipping.

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 PH10JA03000GAEAA?
Yes. This is the factory-specified OEM contactor for the Carrier PH10JA03000GAEAA. 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 PH10JA03000GAEAA?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online