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OEM Carrier Furnace Transformer 120V-24V 40VA for PG8MAA048110AAJA
Carrier

OEM Carrier Furnace Transformer 120V-24V 40VA for PG8MAA048110AAJA

SKU: CARRIE-PG8MAA048110AAJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG8MAA048110AAJA — or your money back. Terms

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OEM Carrier Furnace Control Transformer 120V-24V 40VA — Replaces HT01BC116 for Model PG8MAA048110AAJA

This OEM step-down control transformer is the factory-specified replacement for the Carrier PG8MAA048110AAJA gas furnace. It converts 120V line voltage down to the 24V signal required to power every low-voltage control circuit in your system — including the thermostat, gas valve, inducer relay, and control board. When this transformer fails, the furnace loses all 24V control power: nothing responds, the thermostat goes blank, and the system is completely inoperative. Part number HT01BC116 has been superseded by the current OEM part HT680054, which is a direct drop-in replacement with identical electrical specifications.

  • Specs: Primary Voltage: 120 VAC | Secondary Voltage: 24 VAC | VA Rating: 40VA | Frequency: 50/60 Hz | Phase: Single | Compact 3" × 2-2/16" × 2" footprint
  • OEM vs Generic: This is a genuine Carrier OEM transformer wound to factory-exact tolerances. Off-brand transformers frequently underperform at rated VA, causing nuisance tripping of 3A fuses and premature control board failures. Do not compromise the heart of your furnace's control circuit.
  • Install difficulty: 2/5 — Shut off power at the breaker and confirm 0V at the transformer primary before touching any wiring. Label all wire connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, non-contact voltage tester. Average install time: 20–30 minutes.
  • Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered before the daily cutoff.

Compatibility: Designed for the Carrier PG8MAA048110AAJA gas furnace. Also replaces legacy part numbers HT01BC116, HT01BC115, HT01BB126, HT01CT120, HT01BC120, HT01AW115, HT01AA012, HT01AQ110, and HT01CT210 across Carrier, Bryant, and Payne furnace platforms. Always verify your unit's data plate voltage requirements before ordering. Our parts specialists are available to confirm fitment — order with confidence and get your furnace back online today.

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 PG8MAA048110AAJA?
Yes. This is the factory-specified OEM transformer for the Carrier PG8MAA048110AAJA. 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 PG8MAA048110AAJA?
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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