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OEM Carrier Furnace Transformer 120V-24V 40VA — PG8MAA060155ADJA
Carrier

OEM Carrier Furnace Transformer 120V-24V 40VA — PG8MAA060155ADJA

SKU: CARRIE-PG8MAA060155ADJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG8MAA060155ADJA — or your money back. Terms

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OEM Carrier Furnace Transformer 120V-24V 40VA for Model PG8MAA060155ADJA

This OEM step-down transformer is the factory-specified replacement for the Carrier PG8MAA060155ADJA gas furnace. It converts 120V line voltage down to 24V AC to power every low-voltage control circuit in the system — including the thermostat, control board, gas valve, and zone controls. When this transformer fails, the furnace goes completely silent: no thermostat response, no inducer start, and no error codes. If you're measuring 0V between the R and C terminals on the control board, a failed transformer is the first component to suspect.

  • Specs: Input 120V AC | Output 24V AC | 40VA rating | Foot-mount configuration | Wire lead connections | 60 Hz | Includes 3A fuse protection
  • OEM vs Generic: This OEM unit is factory-matched to Carrier's exact VA rating and mounting footprint. Generic transformers are frequently mismatched in VA output, leading to overheating or nuisance tripping of the control board's fuse — a problem confirmed by field installers. OEM ensures a drop-in fit with no modification.
  • Install difficulty: 2/5 — Shut off power at the breaker and confirm zero voltage before disconnecting leads. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Photograph or label all wire connections before removal. Check and replace the low-voltage fuse on the control board as a best practice during this repair.
  • Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8MAA060155ADJA gas furnace. OEM part number HT01BC116 has been superseded by Carrier part number HT680054 — both are factory-authorized and interchangeable. Also fits many Carrier, Bryant, and Payne furnace models sharing the 120V-24V 40VA transformer specification. Verify your unit's data plate and existing transformer ratings before ordering. Need help confirming fitment? Our HVAC parts team verifies compatibility 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 Carrier OEM Carrier Furnace Transformer 120V-24V 40VA — PG8MAA060155ADJA?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Furnace Transformer 120V-24V 40VA — PG8MAA060155ADJA. 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 120V-24V 40VA — PG8MAA060155ADJA?
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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