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OEM Carrier Transformer 40VA 24V for HP13PR04800GAKAA — HT01AW229
Carrier

OEM Carrier Transformer 40VA 24V for HP13PR04800GAKAA — HT01AW229

SKU: CARRIE-HP13PR04800GAKAA-TRANSFORMER-HT01AW229 Brand: Carrier

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Control Transformer 40VA for Model HP13PR04800GAKAA (Part# HT01AW229)

This OEM step-down control transformer is the factory-specified replacement for the Carrier HP13PR04800GAKAA heat pump system. The transformer converts 120V line voltage to the 24V signal required to power your thermostat, control board, and all low-voltage switching circuits. When this component fails, the entire control circuit goes dead — the thermostat loses power, the system becomes completely unresponsive, and no heating or cooling function is possible. Replacing it with the correct OEM part restores full system communication and operation.

  • Specs: 40VA rated | Primary: 120V | Secondary: 24V | OEM Part Number HT01AW229 | Factory-matched impedance and thermal protection for Carrier HP13PR04800GAKAA systems
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by the Carrier control board. Undersized or off-tolerance generic units can cause nuisance tripping, board damage, or repeated 24V circuit failures.
  • Install difficulty: 2/5 — Always disconnect power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Verify 24V output after installation before restoring full system power. Photograph existing wiring connections prior to removal.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse so your system is back online fast.

Compatibility: Designed specifically for the Carrier HP13PR04800GAKAA heat pump unit. Verify your existing transformer's VA rating and primary/secondary voltage on the data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — call or chat before you buy.

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 $75
  • 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 HP13PR04800GAKAA — HT01AW229?
Yes. This is the factory-specified OEM transformer for the Carrier HP13PR04800GAKAA — HT01AW229. 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 HP13PR04800GAKAA — HT01AW229?
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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