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OEM Carrier Transformer 40VA 208/240V–24V for PY3GNA060115AA
Carrier

OEM Carrier Transformer 40VA 208/240V–24V for PY3GNA060115AA

SKU: CARRIE-PY3GNA060115AA-TRANSFORMER-HT01BD209 Brand: Carrier
✓ Guaranteed to fit PY3GNA060115AA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Control Transformer 40VA 208/240V to 24V — HT01BD209 for Model PY3GNA060115AA

The Carrier HT01BD209 is the factory-specified OEM control transformer for the PY3GNA060115AA packaged gas/electric unit. This transformer steps down line voltage (208/240V) to the 24V signal required to power the thermostat, control board, gas valve, and all low-voltage control circuitry. When the transformer fails, the entire control circuit goes dead — no thermostat response, no call for heat or cool, and no system operation whatsoever. Replacing it with a genuine OEM part restores factory-matched performance instantly.

  • Specs: 208/240V primary input | 24V secondary output | 40VA power rating | 50/60Hz | Carrier OEM part # HT01BD209
  • OEM vs Generic: OEM transformers are wound and tested to exact Carrier factory tolerances, ensuring stable 24V output under full load. Generic units can sag under peak demand, causing nuisance lockouts, erratic board behavior, and premature component failure.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wiring before disconnecting leads. Verify output voltage with a multimeter after installation before restoring full power.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse — order by 3PM local time.

Compatibility: Designed for Carrier model PY3GNA060115AA. This part is also a direct replacement for HT01CN232 and HT01CN233. Always verify input voltage on your unit's data plate matches 208/240V before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.

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 PY3GNA060115AA?
Yes. This is the factory-specified OEM transformer for the Carrier PY3GNA060115AA. 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 PY3GNA060115AA?
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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