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OEM Payne Transformer 40VA 120V/24V for PA2PNB024000AA
Payne

OEM Payne Transformer 40VA 120V/24V for PA2PNB024000AA

SKU: PAYNE-PA2PNB024000AA-TRANSFORMER-HT01BD209 Brand: Payne

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Payne Transformer 40VA 120V to 24V for Model PA2PNB024000AA

This OEM replacement transformer (part number HT01BD209) is the factory-specified control circuit transformer for the Payne PA2PNB024000AA air conditioner. The transformer steps down 120V line voltage to the 24V signal voltage required to power the thermostat, contactor coil, and all low-voltage control components. When this part fails, the entire control circuit goes dead — the thermostat display goes blank, the system won't respond to any calls for cooling, and no components will energize. It is often the first component to suspect when absolutely nothing works.

  • Specs: 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD209 | Factory-matched construction for Payne PA2PNB024000AA
  • OEM vs Generic: This OEM transformer is wound to exact factory VA and voltage tolerances. Undersized or off-tolerance generic transformers can overheat, trip their internal breaker repeatedly, or fail to deliver sufficient current to hold contactors closed under load.
  • Install difficulty: 2/5 — Disconnect all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter for voltage verification. Label or photograph all low-voltage wiring connections (R, C, G, Y, W) before removing the old transformer to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Payne PA2PNB024000AA split-system air conditioner. Verify your existing transformer's primary and secondary voltage ratings on the unit data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — order with confidence.

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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Transformer fit my Payne PA2PNB024000AA?
Yes. This is the factory-specified OEM transformer for the Payne PA2PNB024000AA. 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 PA2PNB024000AA?
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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