Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Transformer 40VA 120V/24V for N6D48NG480103
Carrier

OEM Carrier Transformer 40VA 120V/24V for N6D48NG480103

SKU: CARRIE-N6D48NG480103-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit N6D48NG480103 — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Control Transformer 40VA for Model N6D48NG480103

This is the OEM factory-replacement control transformer (part number HT01BC116) for the Carrier N6D48NG480103 packaged unit. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, contactor coil, and every other low-voltage component in the system. When this transformer fails, absolutely nothing responds — the thermostat goes blank, the system won't call for heating or cooling, and you may blow a control fuse. It is often the first component to check when the entire control circuit goes dead.

  • Specs: 40VA rated | 120V primary / 24V secondary | Class 2 transformer | OEM part number HT01BC116 | Factory-matched for Carrier N6D48NG480103
  • OEM vs Generic: OEM transformers are wound to exact VA and impedance specifications for the N6D48NG480103 control circuit. Undersized or off-spec generic units can overheat, blow fuses repeatedly, or cause nuisance trips on sensitive control boards.
  • Install difficulty: 2/5 — Disconnect power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, wire nuts or spade terminals. Photograph all wiring connections before removing the old transformer.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before the daily cutoff ship same business day from our warehouse.

Compatibility: Designed for the Carrier N6D48NG480103 packaged unit. Always verify the VA rating and primary/secondary voltages on your existing transformer's label before ordering. If you are unsure of fitment, our HVAC parts team can confirm compatibility before you buy — same-day shipping available on in-stock OEM parts.

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 N6D48NG480103?
Yes. This is the factory-specified OEM transformer for the Carrier N6D48NG480103. 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 N6D48NG480103?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online