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OEM Carrier Transformer 60VA 115/208/230V for PH12NA03600GAGAA
Carrier

OEM Carrier Transformer 60VA 115/208/230V for PH12NA03600GAGAA

SKU: CARRIE-PH12NA03600GAGAA-TRANSFORMER-HT01AW229 Brand: Carrier
✓ Guaranteed to fit PH12NA03600GAGAA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 60VA Control Transformer HT01AW229 for Model PH12NA03600GAGAA

This is the genuine OEM factory-authorized replacement control transformer for the Carrier PH12NA03600GAGAA packaged heat pump unit. The transformer steps down high-voltage supply power (115/208/230V) to the 24V signal used by thermostats, contactors, and the unit's control board. When this transformer fails, the result is a completely unresponsive system — no thermostat communication, no relay actuation, and no call-for-cooling or call-for-heating response. Replacing it with the correct OEM part restores the full 24V control circuit instantly.

  • Specs: 60VA | Primary: 115/208/230V | Secondary: 24V | Foot-mounted configuration | OEM Part # HT01AW229 (supersedes HT01AW229A)
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA ratings and insulation class for the PH12NA03600GAGAA. Generic substitutes often run below rated VA output, causing nuisance tripping of low-voltage fuses and premature board failures.
  • Install difficulty: 2/5 — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, nut driver set, multimeter (verify 24VAC output after install). Always discharge any residual voltage before handling wiring. Label all 24V low-voltage wires before disconnecting.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PH12NA03600GAGAA packaged heat pump. Verify your unit's data plate primary voltage (115V, 208V, or 230V) before ordering — this transformer covers all three primary configurations. Have your model and serial number ready and our team will confirm fitment before you order. Order now and ship 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 PH12NA03600GAGAA?
Yes. This is the factory-specified OEM transformer for the Carrier PH12NA03600GAGAA. 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 PH12NA03600GAGAA?
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
HVAC Parts Specialist — Online