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OEM Carrier Control Transformer 60VA 115/208/230V-24V — PH14NA018000AA
Carrier

OEM Carrier Control Transformer 60VA 115/208/230V-24V — PH14NA018000AA

SKU: CARRIE-PH14NA018000AAAA-TRANSFORMER-HT01AW229 Brand: Carrier
✓ Guaranteed to fit PH14NA018000AA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH14NA018000AAAA

This is the factory-authorized OEM replacement control transformer for the Carrier PH14NA018000AAAA heat pump. The transformer steps down the 115/208/230V line-voltage supply to the 24VAC signal voltage that powers your thermostat, contactor coil, reversing valve, and all low-voltage control logic. When this component fails, the entire 24V control circuit goes dead — resulting in a completely unresponsive thermostat, a system that won't start in any mode, or a tripped secondary fuse with no obvious cause. Replacing the transformer with this exact OEM part restores proper control voltage and protects every downstream component.

  • Specs: 60VA power rating | 115/208/230V AC primary (multi-tap) | 24V AC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01AW229
  • OEM vs Generic: This Factory Authorized Part is wound to exact Carrier tolerances, ensuring stable 24V output under full load. Generic transformers can sag under load, causing intermittent lockouts and premature contactor coil failure.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Always label low-voltage wires before disconnecting. Confirm primary tap matches your supply voltage.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PH14NA018000AAAA heat pumps. Cross-references include HT01AW229A. Verify your unit's supply voltage before selecting the primary tap. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order — contact us today.

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 Transformer fit my Carrier OEM Carrier Control Transformer 60VA 115/208/230V-24V — PH14NA018000AA?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Control Transformer 60VA 115/208/230V-24V — PH14NA018000AA. 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 transformer on my Carrier OEM Carrier Control Transformer 60VA 115/208/230V-24V — PH14NA018000AA?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Photo wiring connections. Step 3: Disconnect wires from old transformer. Step 4: Remove mounting hardware. Step 5: Install new transformer, reconnect wires matching voltage ratings. Step 6: Verify 24V output with multimeter.
My thermostat has no power. What failed?
Thermostat with no display = failed 24V transformer (or blown control board fuse). Check the 3A/5A fuse on the control board first ($1–$5 fix). If fuse is good but no 24V output from transformer, replace transformer.
Is this transformer 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 transformer?
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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