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OEM Carrier Transformer 40VA 120V/24V for N6A48NG481459
Carrier

OEM Carrier Transformer 40VA 120V/24V for N6A48NG481459

SKU: CARRIE-N6A48NG481459-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit N6A48NG481459 — or your money back. Terms

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OEM Carrier Control Transformer 40VA for Model N6A48NG481459

This OEM control transformer (part# HT01BC116) is the factory-specified replacement for the Carrier N6A48NG481459 packaged unit. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, contactor coil, gas valve, and control board. When it fails, the entire control circuit goes dead — your thermostat goes blank, the system stops responding to calls for heating or cooling, and no components energize. If you have 120V at the primary but 0V at the secondary, this transformer is your diagnosis.

  • Specs: 40VA rating | 120V primary / 24V secondary | OEM part number HT01BC116 | Factory-matched for Carrier N6A48NG481459 packaged units
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by the factory control board. Undersized or off-tolerance generic units can overheat under peak load, blow fuses repeatedly, or cause erratic thermostat behavior.
  • Install difficulty: 2/5 — Disconnect power at the breaker and verify with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Check and replace the 3A control fuse if blown — a shorted downstream component may have caused the original failure.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier N6A48NG481459 packaged gas/electric unit. Verify your existing transformer's VA rating and primary/secondary voltages on the unit data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions.

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 N6A48NG481459?
Yes. This is the factory-specified OEM transformer for the Carrier N6A48NG481459. 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 N6A48NG481459?
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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