Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / OEM Payne Transformer 40VA 120V/24V f...
OEM Payne Transformer 40VA 120V/24V for PA2PJB048000AA
Payne

OEM Payne Transformer 40VA 120V/24V for PA2PJB048000AA

SKU: PAYNE-PA2PJB048000AA-TRANSFORMER-HT01BD209 Brand: Payne

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

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

OEM Payne Transformer 40VA 120V to 24V Control Circuit for Model PA2PJB048000AA

This OEM replacement transformer (part number HT01BD209) is the factory-specified control circuit transformer for the Payne PA2PJB048000AA split-system air conditioner. The transformer steps down 120V line voltage to the 24V low-voltage signal required to power your thermostat, contactor coil, and control board. When this component fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to any calls for cooling or heating, and no components will energize. A failed transformer is often caused by a shorted control wire, a failed component drawing excess current, or simple age-related breakdown of the internal windings.

  • Specs: 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD209 | Mounts directly to original bracket with no modification
  • OEM vs Generic: This factory OEM transformer is wound to exact VA and voltage specifications for the PA2PJB048000AA. Generic transformers frequently underperform on VA rating, causing nuisance tripping of the internal fuse and premature contactor coil failure.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify 24V output at secondary terminals before reassembling the panel. Always check for downstream shorts before installing a new transformer.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and tested for the Payne PA2PJB048000AA 4-ton split-system condenser. Verify primary voltage and VA rating on your unit's data plate before ordering. Our technical team is available to confirm fitment — contact us before you order 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 $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 PA2PJB048000AA?
Yes. This is the factory-specified OEM transformer for the Payne PA2PJB048000AA. 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 PA2PJB048000AA?
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.
Home Shop Search Account Cart