Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Transformer 40VA 120V/24V for GB3AAV060115AFJA
Carrier

OEM Carrier Transformer 40VA 120V/24V for GB3AAV060115AFJA

SKU: CARRIE-GB3AAV060115AFJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit GB3AAV060115AFJA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Transformer 40VA 120/24V for Model GB3AAV060115AFJA

This is the factory OEM replacement transformer (part number HT01BC116) for the Carrier GB3AAV060115AFJA gas furnace. The control transformer steps down incoming 120V line voltage to the 24V signal voltage required by your thermostat, control board, gas valve, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — your thermostat will show no response, your furnace will not attempt ignition, and nothing will happen when you call for heat or cooling. A failed transformer is often misdiagnosed as a bad control board, making this an important first diagnostic step.

  • Specs: 40VA rated | 120V primary / 24V secondary | Direct OEM replacement | Part number HT01BC116 | Factory-matched output voltage within ±2%
  • OEM vs Generic: OEM transformers are wound and insulated to exact factory specifications, ensuring stable 24V output under full load. Generic units often deliver inconsistent voltage that can cause nuisance lockouts, erratic thermostat behavior, or premature control board failure.
  • Install difficulty: 2/5 — Disconnect power at the breaker and confirm zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Label or photograph all low-voltage wiring before disconnecting. Verify fuse integrity on the control board after replacement.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier GB3AAV060115AFJA gas furnace. Cross-reference part number HT01BC116 against your unit's data plate and wiring diagram before ordering. If you are unsure of fitment, our HVAC parts specialists are available to verify compatibility before you purchase. In stock and ready to ship today — get your system back online 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 GB3AAV060115AFJA?
Yes. This is the factory-specified OEM transformer for the Carrier GB3AAV060115AFJA. 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 GB3AAV060115AFJA?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online