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OEM Carrier Transformer 40VA 120V/24V for N6A48NG481465
Carrier

OEM Carrier Transformer 40VA 120V/24V for N6A48NG481465

SKU: CARRIE-N6A48NG481465-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit N6A48NG481465 — 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 N6A48NG481465

This OEM replacement transformer (part number HT01BC116) is the factory-specified control circuit transformer for the Carrier N6A48NG481465 packaged unit. The transformer steps line voltage (120V) down to the 24V signal voltage that powers your thermostat, contactor coil, gas valve, and control board. When this component fails, the entire control circuit goes dark — the thermostat loses power, no calls for heat or cool are processed, and the system appears completely dead. If you have 120V at the transformer primary but zero volts at the secondary, this part is your fix.

  • Specs: 40VA rating | 120V primary / 24V secondary | Class 2 transformer | Direct OEM replacement for part number HT01BC116 | Factory-matched output tolerance
  • OEM vs Generic: The OEM HT01BC116 transformer is wound and rated to Carrier's exact VA and voltage specs, ensuring stable 24V output under full control circuit load. Generic transformers often run undersized VA ratings, causing voltage sag that triggers nuisance lockouts on modern control boards.
  • Install Difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Label all wiring connections before disconnecting the old unit. Verify 24V output at secondary terminals after installation before restoring full system power.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse stock.

Compatibility: Designed as a direct OEM drop-in for the Carrier N6A48NG481465 packaged unit. Always confirm the 120V primary and 24V secondary voltage ratings match your unit's data plate before installation. Our parts specialists are available to verify fitment — reach out before you order if you have any questions. In stock and ready to ship 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 N6A48NG481465?
Yes. This is the factory-specified OEM transformer for the Carrier N6A48NG481465. 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 N6A48NG481465?
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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