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OEM Carrier Contactor for PH3GNA030000AB Heat Pump Package Unit
Carrier

OEM Carrier Contactor for PH3GNA030000AB Heat Pump Package Unit

SKU: CARRIE-PH3GNA030000AB-CONTACTOR-HN51KB024 Brand: Carrier
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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Contactor for PH3GNA030000AB Heat Pump Package Unit

The contactor is the high-voltage switch that lets your Carrier PH3GNA030000AB heat pump's low-voltage controls energize the compressor and condenser fan motor. When the thermostat calls, the 24V coil pulls the contacts closed and sends 240V to the heavy loads. When a contactor fails, homeowners commonly hear a loud hum or buzz from the outdoor unit, notice the system won't start at all, or — more dangerously — find the unit stuck running because the contacts have welded shut. Pitted, burned, or chattering contacts cause hard starts, flickering lights, and breaker trips, while a dead coil leaves you with no cooling or heating despite a working thermostat. This is a definite-purpose contactor with a 24VAC coil switching 208/230V line voltage. Pole configuration (single- or double-pole) and contact rating (commonly 30–40 FLA / resistive amps) are matched to the PH3GNA030000AB's compressor and fan load. Genuine Carrier contactors use full-size silver-alloy contacts and a correctly rated coil. Generic aftermarket contactors frequently ship with undersized contacts that pit, arc, and weld far faster under compressor inrush, and coils with wrong pull-in voltage that fail to seat reliably — leading to repeat failures and compressor stress. Installation difficulty: 2 of 5. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter to confirm coil continuity (~10–20 ohms) and contact closure. SAFETY: shut off the breaker and confirm zero volts across the line terminals before touching — the contactor carries lethal 240V even when the unit is off. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PH3GNA030000AB. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.

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 PH3GNA030000AB Heat Pump Package Unit?
Yes. This is the factory-specified OEM contactor for the Carrier PH3GNA030000AB Heat Pump Package Unit. 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 PH3GNA030000AB Heat Pump Package Unit?
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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