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OEM Carrier Transformer 40VA 120/24V for HP13NR03600GAKAA
Carrier

OEM Carrier Transformer 40VA 120/24V for HP13NR03600GAKAA

SKU: CARRIE-HP13NR03600GAKAA-TRANSFORMER-HT01AW229 Brand: Carrier
✓ Guaranteed to fit HP13NR03600GAKAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier 40VA Control Transformer HT01AW229 for Model HP13NR03600GAKAA

This OEM step-down control transformer (part# HT01AW229) is the factory-specified replacement for the Carrier HP13NR03600GAKAA heat pump system. The transformer converts 120V line voltage to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When this component fails, the entire control circuit goes dead — your thermostat will display nothing, the system won't respond to any calls for heating or cooling, and no safety safeties or relays will function. It is often the first component to diagnose when nothing at all appears to work.

  • Specs: 40VA rated | Primary: 120V AC | Secondary: 24V AC | Factory-matched output for stable low-voltage control circuits | Replaces OEM part number HT01AW229
  • OEM vs Generic: This is a genuine Carrier OEM transformer wound to exact VA and voltage tolerances. Generic transformers can deliver inconsistent 24V output, causing nuisance lockouts, contactor chatter, and premature control board failures — making the OEM choice the cost-effective long-term option.
  • Install Difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Label or photograph all low-voltage wiring connections before disconnecting. Verify 24V output with a multimeter after installation before restoring full system power.
  • Warranty: 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier HP13NR03600GAKAA heat pump unit. Always verify your unit's data plate confirms a 40VA 120/24V transformer specification before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions. Order today and take advantage of same-day shipping on all in-stock parts.

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 HP13NR03600GAKAA?
Yes. This is the factory-specified OEM transformer for the Carrier HP13NR03600GAKAA. 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 HP13NR03600GAKAA?
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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