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 PA2PJB048000AB
Payne

OEM Payne Transformer 40VA 120V/24V for PA2PJB048000AB

SKU: PAYNE-PA2PJB048000AB-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 40VA Control Transformer for Model PA2PJB048000AB

This OEM replacement transformer (part# HT01BD209) is the factory-specified control transformer for the Payne PA2PJB048000AB packaged heat pump unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage control circuits. When the transformer fails, the entire control system goes dark — the thermostat loses power, the unit refuses to respond to any call for heating or cooling, and no fault codes are generated because the board itself has no power to report them.

  • Specs: 40VA rating | 120V primary / 24V secondary | Class 2 output | Direct OEM replacement for part# HT01BD209 | Factory-matched footprint and wire leads
  • OEM vs Generic: OEM transformers are wound to exact VA ratings ensuring reliable coil pull-in for contactors and precise 24V output under load. Undersized aftermarket units can sag voltage under load, causing intermittent lockouts and nuisance fault codes that are difficult to diagnose.
  • Install difficulty: 2/5 — Disconnect power at the breaker and verify voltage is absent with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Label all low-voltage wiring before removal and confirm correct primary tap for your supply voltage.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock units ship same business day when ordered before cutoff.

Compatibility: Designed specifically for the Payne PA2PJB048000AB 4-ton packaged heat pump. Confirm your unit's data plate shows 120V control circuit voltage and a 40VA transformer requirement before ordering. Our HVAC parts specialists are available to verify fitment — don't guess on control circuit components.

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 PA2PJB048000AB?
Yes. This is the factory-specified OEM transformer for the Payne PA2PJB048000AB. 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 PA2PJB048000AB?
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