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OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA060090AAJA
Carrier

OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA060090AAJA

SKU: CARRIE-PG8JAA060090AAJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG8JAA060090AAJA — or your money back. Terms

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OEM Carrier Furnace Control Transformer 40VA 120V/24V for Model PG8JAA060090AAJA

This OEM step-down control transformer is the factory-specified replacement for the Carrier PG8JAA060090AAJA gas furnace, superseding original part number HT01BC116 (current OEM replacement: HT680054). The transformer converts 120V line voltage down to 24V to power the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and ignition board. When it fails, absolutely nothing in the control system responds: no call for heat, no inducer start, no display — the furnace goes completely dark electrically. A blown internal fuse or shorted secondary winding are the two most common failure modes.

  • Specs: 40VA rating | 120V primary | 24V secondary | 50/60 Hz single-phase | Compact 3" L × 2-3/16" W × 2" H form factor | Wire lead connections
  • OEM vs Generic: This OEM unit is wound to exact Carrier factory tolerances, ensuring stable 24V output under full control-circuit load. Generic transformers with undersized VA ratings can sag under load, causing erratic lockouts, nuisance faults, and premature board failures.
  • Install difficulty: 2/5 — Shut off furnace power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24V output after install). Photograph all wire connections before removing the old transformer. Label leads if needed. Total job time: 20–30 minutes.
  • Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered before cutoff.

Compatibility: Direct OEM replacement for Carrier model PG8JAA060090AAJA gas furnace. Supersedes discontinued part HT01BC116; also cross-references HT01BC115, HT01BB126, HT01CT120, HT01AW115, and HT01AA012. Always verify 40VA/120V/24V ratings on your unit's data plate before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — order today and get it shipped fast.

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 OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA060090AAJA?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA060090AAJA. 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 OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA060090AAJA?
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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