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OEM Carrier Transformer 40VA 120V/24V for GB1AAV024055AAJA
Carrier

OEM Carrier Transformer 40VA 120V/24V for GB1AAV024055AAJA

SKU: CARRIE-GB1AAV024055AAJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit GB1AAV024055AAJA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Transformer 40VA 120V/24V for Model GB1AAV024055AAJA

This is the factory-specified OEM control transformer (part number HT01BC116) for the Carrier GB1AAV024055AAJA gas furnace. The transformer steps down line voltage from 120V AC to 24V AC to power the low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When this transformer fails, the entire control circuit goes dead: your thermostat will display nothing, the furnace will not respond to any call for heat or cooling, and no safety controls will operate. It is often the first component to check when a system is completely unresponsive.

  • Specs: 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BC116 | Factory-matched for Carrier GB1AAV024055AAJA control circuit requirements
  • OEM vs Generic: This is a genuine OEM Carrier transformer wound to exact VA and voltage specifications. Generic transformers may be under-rated in VA capacity, leading to premature failure under the full control-circuit load — especially in systems with zone valves or multiple accessories drawing 24V power.
  • Install difficulty: 2/5 — Disconnect power at the disconnect switch and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all wiring connections before removal. Verify primary and secondary voltages with a multimeter after installation before restoring the system to service.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier GB1AAV024055AAJA gas furnace. Confirm your existing transformer's VA rating and primary/secondary voltages against your unit's data plate before ordering. Our technical team is available to verify fitment — order with confidence and 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 GB1AAV024055AAJA?
Yes. This is the factory-specified OEM transformer for the Carrier GB1AAV024055AAJA. 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 GB1AAV024055AAJA?
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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