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OEM Carrier Transformer 40VA 120V/24V for N6A48NG481822
Carrier

OEM Carrier Transformer 40VA 120V/24V for N6A48NG481822

SKU: CARRIE-N6A48NG481822-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit N6A48NG481822 — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Control Transformer 40VA 120V/24V for Model N6A48NG481822

This is the OEM factory-replacement control transformer (part number HT01BC116) for the Carrier N6A48NG481822 packaged unit. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, contactor coil, and control board. When this transformer fails, the entire low-voltage control circuit goes dead — your thermostat goes blank, the system stops responding to calls for heating or cooling, and nothing turns on. It is one of the first components to check when a system shows zero response to any thermostat command.

  • Specs: Input 120V AC | Output 24V AC | 40VA rating | OEM part number HT01BC116 | Factory-matched to Carrier N6A48NG481822 electrical specifications
  • OEM vs Generic: This factory OEM transformer is wound to exact VA and voltage specifications. Generic transformers frequently run undersized VA ratings, causing premature burnout when multiple 24V accessories (humidifiers, zone boards, UV lights) share the circuit load.
  • Install difficulty: 2/5 — Disconnect all power at the breaker and verify with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Label all low-voltage wiring connections before disconnecting the old unit.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model N6A48NG481822. Confirm your existing transformer's input voltage, output voltage, and VA rating on the unit's data plate or wiring diagram before ordering. Our fitment team is available to verify compatibility before you purchase — same-day shipping on all in-stock orders.

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 N6A48NG481822?
Yes. This is the factory-specified OEM transformer for the Carrier N6A48NG481822. 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 N6A48NG481822?
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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