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OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAB024060LBSA
Carrier

OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAB024060LBSA

SKU: CARRIE-PG9MAB024060LBSA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG9MAB024060LBSA — or your money back. Terms

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OEM Carrier Furnace Transformer 120V–24V 40VA for Model PG9MAB024060LBSA

This OEM step-down transformer is the factory-specified replacement for the Carrier PG9MAB024060LBSA gas furnace. Its sole job is converting 120V line-voltage power down to the 24V AC signal that drives every low-voltage component in your system — the thermostat, control board, gas valve, and inducer relay. When this transformer fails, nothing responds: the thermostat goes blank, the furnace is completely unresponsive, and you may measure 0V between the R and C terminals on the control board. OEM part HT01BC116 has been superseded by HT680054, which ships in a Carrier factory-authorized parts box and is a direct plug-in replacement.

  • Specs: Primary input 120V AC | Secondary output 24V AC | 40VA rated | 60 Hz | Foot-mount configuration | Wire lead connections with pre-installed female connectors
  • OEM vs Generic: OEM transformers are wound and tested to Carrier's exact VA and voltage tolerances. Generic units often deliver unstable output voltage, which can damage your control board — an $150–$200 part. The OEM replacement is the safer, longer-lasting choice.
  • Install difficulty: 2/5 — Shut off all power to the furnace at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Photograph or label all wiring connections before disconnecting. Verify 24V output at R–C terminals after installation. Consider adding an inline 3A fuse to protect against future low-voltage shorts.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Fits Carrier model PG9MAB024060LBSA gas furnace. OEM part number HT01BC116 has been superseded by HT680054 — both references are honored by this listing. Also cross-references HT01BC115, HT01BB126, HT01CT120, HT01BC120, and HT01AW115. Verify your unit's data plate shows a 120V primary / 24V secondary transformer before ordering. Our fitment team is available to confirm compatibility before you buy.

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 OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAB024060LBSA?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAB024060LBSA. 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 OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAB024060LBSA?
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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