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OEM Carrier Transformer 40VA 120V/24V for HP13PR04200GAKAA
Carrier

OEM Carrier Transformer 40VA 120V/24V for HP13PR04200GAKAA

SKU: CARRIE-HP13PR04200GAKAA-TRANSFORMER-HT01AW229 Brand: Carrier
✓ Guaranteed to fit HP13PR04200GAKAA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 40VA Control Transformer for Model HP13PR04200GAKAA

This OEM control transformer (part# HT01AW229) is the factory-specified replacement for the Carrier HP13PR04200GAKAA heat pump system. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, contactor coil, and control board. When this component fails, the entire low-voltage control circuit loses power — resulting in a completely unresponsive thermostat, no system response to calls for heating or cooling, and potential control board fault codes.

  • Specs: 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01AW229 | Factory-matched winding tolerances for stable, clean 24V output
  • OEM vs Generic: OEM transformers deliver tightly regulated 24V output that protects sensitive control boards and thermostat circuits. Generic alternatives often produce voltage fluctuations that can trigger nuisance faults or prematurely damage downstream components over time.
  • Install difficulty: 2/5 — Always disconnect power at the breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to confirm input/output voltage after install). Label all wires prior to disconnecting the old transformer. Verify 24V output before closing the cabinet.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse when ordered by 3PM local time.

Compatibility: Engineered specifically for the Carrier HP13PR04200GAKAA heat pump. Always verify the 40VA rating and 120V primary / 24V secondary voltage specifications on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — call or chat today and get your system back online fast.

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 HP13PR04200GAKAA?
Yes. This is the factory-specified OEM transformer for the Carrier HP13PR04200GAKAA. 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 HP13PR04200GAKAA?
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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