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OEM Carrier Transformer 40VA 120V/24V for N6A48NG481462
Carrier

OEM Carrier Transformer 40VA 120V/24V for N6A48NG481462

SKU: CARRIE-N6A48NG481462-TRANSFORMER-HT01BC116 Brand: Carrier

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Control Transformer 40VA 120V to 24V for Model N6A48NG481462

This OEM Carrier transformer (part number HT01BC116) is the factory-specified replacement for the N6A48NG481462 packaged unit. The transformer steps down line voltage from 120V to 24V AC to power the entire low-voltage control circuit — including the thermostat, contactor coil, gas valve, and control board. When the transformer fails, nothing works: the thermostat goes blank, the system won't respond to any call for heating or cooling, and you may find a blown fuse on the control board. It is one of the most common causes of a completely unresponsive HVAC system.

  • Specs: 40VA rating | 120V primary / 24V secondary | OEM part number HT01BC116 | Factory-matched output voltage for reliable control circuit operation
  • OEM vs Generic: This OEM transformer meets Carrier's exact VA rating and insulation class specifications. Generic transformers frequently run at reduced VA capacity, causing voltage sag under load — which leads to erratic contactor chatter, control board faults, and premature component failure.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or terminal connectors, multimeter to confirm 24V output after installation. Photograph all wiring connections before disconnecting the old transformer.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier N6A48NG481462 packaged unit. Verify your existing transformer's primary voltage, secondary voltage, and VA rating against your unit's data plate before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you place your order — same-day shipping on all in-stock 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 $75
  • 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 N6A48NG481462?
Yes. This is the factory-specified OEM transformer for the Carrier N6A48NG481462. 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 N6A48NG481462?
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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