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OEM Carrier Transformer 40VA 120V-24V for GB1AAV060125AAJA
Carrier

OEM Carrier Transformer 40VA 120V-24V for GB1AAV060125AAJA

SKU: CARRIE-GB1AAV060125AAJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit GB1AAV060125AAJA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Transformer 40VA 120V to 24V for Model GB1AAV060125AAJA

This OEM step-down transformer (part number HT01BC116) is the factory-specified replacement for the Carrier GB1AAV060125AAJA gas furnace. The transformer converts 120V line voltage down to 24V to power the entire low-voltage control circuit — including the thermostat, control board, gas valve, and safety relays. When the transformer fails, nothing in the system responds: the thermostat goes blank, the furnace won't fire, and the system appears completely dead. A blown transformer is often caused by a wiring short in the 24V circuit, so always inspect low-voltage wiring before installing a replacement.

  • Specs: 40VA rating | Primary: 120V AC | Secondary: 24V AC | Replaces OEM part number HT01BC116 | Factory-matched output voltage and VA capacity
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by the Carrier control board. Undersized or off-tolerance generic units can overheat, trip the internal thermal fuse, or deliver inconsistent 24V output — leading to erratic system behavior and premature control board failure.
  • Install difficulty: 2/5 — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or quick-connect terminals. Verify the 24V short is resolved before energizing. Photograph all wiring connections prior to removal.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.

Compatibility: Designed for the Carrier GB1AAV060125AAJA gas furnace. Confirm primary voltage (120V) and VA rating on your existing transformer's label before ordering. If your system shows a blown fuse or tripped breaker on the 24V side, inspect all thermostat and control wiring for shorts before replacing. Order today — in stock and ships same day.

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 GB1AAV060125AAJA?
Yes. This is the factory-specified OEM transformer for the Carrier GB1AAV060125AAJA. 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 GB1AAV060125AAJA?
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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