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OEM Carrier Transformer 40VA 120V-24V for CH13NA03600GACAA
Carrier

OEM Carrier Transformer 40VA 120V-24V for CH13NA03600GACAA

SKU: CARRIE-CH13NA03600GACAA-TRANSFORMER-HT01AW229 Brand: Carrier
✓ Guaranteed to fit CH13NA03600GACAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Control Transformer 40VA 120V/24V for Model CH13NA03600GACAA

This is the factory OEM replacement transformer (part number HT01AW229) for the Carrier CH13NA03600GACAA split-system condenser. The transformer steps down line voltage from 120V to the 24V DC signal required to power your thermostat, contactor coil, and all low-voltage control circuitry. When this transformer fails, the entire control circuit goes dark — your thermostat will display nothing or lose communication, the contactor will never energize, and the system will not respond to any thermostat call. A failed transformer is often misdiagnosed as a bad control board, making this an important first diagnostic step.

  • Specs: Input 120VAC | Output 24VAC | 40VA rating | OEM part number HT01AW229 | Factory-matched for Carrier CH13NA03600GACAA
  • OEM vs Generic: This OEM unit is wound to exact factory VA tolerances, ensuring stable 24V output under full control-circuit load. Undersized generic transformers can sag under load, causing erratic contactor behavior and nuisance lockouts.
  • Install difficulty: 2/5 — Disconnect power at the breaker and confirm zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Label all low-voltage wires before removal and verify the blown fuse on the secondary side, as a shorted low-voltage wire is frequently the root cause of transformer failure.
  • Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Designed and factory-specified for the Carrier CH13NA03600GACAA 3-ton split-system condenser. Confirm your existing transformer's input/output voltage and VA rating against your unit's data plate prior to ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your system back online 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 CH13NA03600GACAA?
Yes. This is the factory-specified OEM transformer for the Carrier CH13NA03600GACAA. 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 CH13NA03600GACAA?
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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