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OEM Carrier Transformer 40VA 208/240V–24V for PY3PPA030060NA
Carrier

OEM Carrier Transformer 40VA 208/240V–24V for PY3PPA030060NA

SKU: CARRIE-PY3PPA030060NA-TRANSFORMER-HT01BD209 Brand: Carrier
✓ Guaranteed to fit PY3PPA030060NA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier 40VA Control Transformer HT01BD209 for Model PY3PPA030060NA

This OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the Carrier PY3PPA030060NA packaged unit. The transformer steps down 208/240V line voltage to the 24V signal voltage that powers your thermostat, control board, contactors, and every other low-voltage component in the system. When this transformer fails, the entire control circuit goes dark — the thermostat goes blank, the system refuses to respond to any call for heating or cooling, and no safety fault codes are logged because the board itself has no power.

  • Specs: Input: 208/240V | Output: 24V secondary | Power Rating: 40VA | Frequency: 50/60 Hz | OEM Part #: HT01BD209 | Factory-matched to Carrier PY3PPA030060NA
  • OEM vs Generic: This is the genuine Carrier OEM part built to exact factory VA rating and winding tolerances. Generic transformers may run undersized VA ratings, causing voltage sag that triggers nuisance lockouts or premature control board failure.
  • Install Difficulty: 2/5 — Always shut off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdriver, multimeter, needle-nose pliers. Confirm 24V at the secondary terminals after install before restoring line voltage. Photograph all wiring connections before disconnecting the old transformer.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier PY3PPA030060NA packaged unit. Verify your unit's data plate shows a 208/240V primary and 24V secondary control circuit before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any questions.

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 PY3PPA030060NA?
Yes. This is the factory-specified OEM transformer for the Carrier PY3PPA030060NA. 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 PY3PPA030060NA?
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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