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OEM Carrier 40VA Transformer 120V-24V HT01BC116 for PG8JAA036110AAJA
Carrier

OEM Carrier 40VA Transformer 120V-24V HT01BC116 for PG8JAA036110AAJA

SKU: CARRIE-PG8JAA036110AAJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG8JAA036110AAJA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier 40VA Control Transformer 120V–24V for Model PG8JAA036110AAJA (HT01BC116)

This OEM control transformer is the factory-specified replacement for the Carrier PG8JAA036110AAJA gas furnace. It steps down 120V line voltage to the 24V AC signal that powers every low-voltage component in your system — including the thermostat, gas valve, inducer relay, and control board. When it fails, the result is total low-voltage shutdown: a blank thermostat, no ignition attempt, and a furnace that won't respond to any call for heat. Note: OEM part number HT01BC116 has been superseded by HT680054, the current factory-authorized direct replacement shipped in a Carrier factory parts box.

  • Specs: Primary Voltage: 120V AC | Secondary Voltage: 24V AC | VA Rating: 40VA | Frequency: 60Hz | Phase: Single | Mounting: Foot mount with wire leads
  • OEM vs Generic: OEM transformers are wound to exact factory VA and voltage tolerances. Undersized or off-spec generic units can cause nuisance lockouts, erratic thermostat behavior, or premature control board failure due to voltage sag under load.
  • Install Difficulty: 2/5 — Shut off power at the breaker and confirm voltage is zero with a multimeter before disconnecting any wires. Photograph all wiring connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label leads with tape before disconnecting.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8JAA036110AAJA gas furnace. Supersedes HT01BC116, HT01BC115, HT01BC120, HT01BB126, HT01CT120, HT01AW115, HT01AA012, HT01AQ110, and several other legacy part numbers. Always verify your unit's data plate voltage before ordering. Need fitment confirmation? Our HVAC parts team checks compatibility before you buy — order with confidence and get it shipped today.

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 PG8JAA036110AAJA?
Yes. This is the factory-specified OEM transformer for the Carrier PG8JAA036110AAJA. 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 PG8JAA036110AAJA?
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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