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OEM Carrier Furnace Transformer 120V–24V 40VA for PG8JAA036070ABJA
Carrier

OEM Carrier Furnace Transformer 120V–24V 40VA for PG8JAA036070ABJA

SKU: CARRIE-PG8JAA036070ABJA-TRANSFORMER-HT01BC116 Brand: Carrier
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OEM Carrier Furnace Transformer 120V–24V 40VA for Model PG8JAA036070ABJA (HT01BC116)

This OEM control transformer is the factory-specified replacement for the Carrier PG8JAA036070ABJA gas furnace. It steps down 120V line voltage to the 24V signal used by your thermostat, control board, gas valve, and all low-voltage controls. When the transformer fails, the entire control circuit goes dead — you'll see a blank thermostat, no ignition attempt, and no response from the furnace whatsoever. Replacing it restores full low-voltage function and is one of the most reliable, cost-effective repairs in HVAC service.

  • Specs: Primary Input: 120VAC | Secondary Output: 24VAC | VA Rating: 40VA | Frequency: 60Hz | Connection Type: Wire Leads | Mounting: Foot-mount | OEM Part Number: HT01BC116 (superseded by HT680054)
  • OEM vs Generic: OEM transformers are wound and tested to exact factory VA and voltage tolerances. Generic units often run outside rated VA, causing nuisance tripped fuses, control board faults, and premature failure of downstream components like gas valves and contactors.
  • Install Difficulty: 2/5 — Straightforward replacement for any experienced DIYer or technician. Turn off the furnace disconnect and 24V fuse before proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph all wire connections before disconnecting. Verify 24VAC output with a multimeter after installation.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PG8JAA036070ABJA gas furnace. Also cross-references HT680054, HT01BC115, HT01BC120. Always confirm input voltage and VA rating on your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you buy 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 PG8JAA036070ABJA?
Yes. This is the factory-specified OEM transformer for the Carrier PG8JAA036070ABJA. 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 PG8JAA036070ABJA?
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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