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OEM Payne Transformer 40VA 120V/24V for PA3PNA030000AA
Payne

OEM Payne Transformer 40VA 120V/24V for PA3PNA030000AA

SKU: PAYNE-PA3PNA030000AA-TRANSFORMER-HT01BD209 Brand: Payne
✓ Guaranteed to fit PA3PNA030000AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Payne 40VA Control Transformer for Model PA3PNA030000AA

This is the OEM factory-replacement control transformer (part number HT01BD209) designed specifically for the Payne PA3PNA030000AA air conditioner. The transformer steps down line voltage (120V) to the 24V AC signal that powers your thermostat, control board, and all low-voltage control circuits. When this part fails, the entire control system goes dark — the thermostat becomes unresponsive, the system won't call for cooling or heating, and no error codes will display because the board itself has no power.

  • Specs: 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD209 | Factory-matched for Payne PA3PNA030000AA
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by the factory control board. Undersized or off-spec generic units can cause nuisance tripping, brownouts on the 24V circuit, or premature control board failure.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label all low-voltage wires before disconnecting the secondary terminals to avoid miswiring.
  • Warranty: 1-year OEM factory warranty. In stock and ships the same business day from our climate-controlled warehouse.

Compatibility: Designed as a direct OEM replacement for the Payne PA3PNA030000AA unit. Verify your existing transformer's VA rating and primary/secondary voltages on the unit data plate or transformer label before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before every order — reach out 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 $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 Payne PA3PNA030000AA?
Yes. This is the factory-specified OEM transformer for the Payne PA3PNA030000AA. 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 Payne PA3PNA030000AA?
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 Payne 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 Payne 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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