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OEM Carrier Control Transformer 120V-24V 40VA for PG8JAA036070ACJA
Carrier

OEM Carrier Control Transformer 120V-24V 40VA for PG8JAA036070ACJA

SKU: CARRIE-PG8JAA036070ACJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG8JAA036070ACJA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Control Transformer 120V-24V 40VA for Model PG8JAA036070ACJA

This OEM control transformer is the factory-specified replacement for the Carrier PG8JAA036070ACJA gas furnace. The transformer steps down 120V line voltage to 24V AC, powering every low-voltage component in your system — including the thermostat, gas valve, inducer relay, and control board. When this part fails, you'll typically experience a completely unresponsive thermostat, a furnace that won't initiate any call for heat, or a blown low-voltage fuse with no obvious short. It is a silent but critical link between your line voltage and your entire control circuit.

  • Specs: 40VA rating | 120V primary / 24V secondary | 60 Hz single phase | Foot-mount with wire leads | OEM part HT01BC116, superseded to HT680054
  • OEM vs Generic: This factory-matched OEM unit is wound to exact VA and voltage tolerances. Undersized or off-tolerance generic transformers can overheat under combined thermostat + AC contactor + gas valve loads, causing nuisance trips or premature failure.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label or photograph all wiring before disconnecting the old transformer. Verify 24V output at the C and R terminals on the control board after installation.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM drop-in replacement for the Carrier PG8JAA036070ACJA gas furnace. Also replaces legacy part numbers HT01BC115, HT01BB126, HT01CT120, HT01BC120, and HT01AW115. Always verify your unit's data plate voltage before ordering. Not sure it fits? Our parts team confirms fitment before you buy — just ask.

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 PG8JAA036070ACJA?
Yes. This is the factory-specified OEM transformer for the Carrier PG8JAA036070ACJA. 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 PG8JAA036070ACJA?
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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