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OEM Carrier Furnace Transformer 120V/24V 40VA — PG9YAA036060ACSS
Carrier

OEM Carrier Furnace Transformer 120V/24V 40VA — PG9YAA036060ACSS

SKU: CARRIE-PG9YAA036060ACSS-TRANSFORMER-HT01BC117 Brand: Carrier
✓ Guaranteed to fit PG9YAA036060ACSS — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Furnace Control Transformer 120V/24V 40VA for Model PG9YAA036060ACSS

This OEM control transformer is the factory-specified replacement for the Carrier PG9YAA036060ACSS gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, gas valve, and every other low-voltage control circuit in the system. When it fails, the entire control system goes dark — no thermostat response, no ignition sequence, and no heat. A failed transformer is one of the most commonly misdiagnosed furnace faults; always verify 24V output at the secondary terminals with a multimeter before condemning the control board.

  • Specs: 120V primary / 24V secondary | 40VA rated | Foot-mount chassis | OEM part number HT01BC117 (supersedes HT01BC117A) | Cross-references: Basler Electric BE161840GDD
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part wound to exact VA and voltage tolerances. Off-brand transformers are often rated at marginal 40VA, causing thermal shutdowns under full control-circuit load and nuisance lockouts.
  • Install difficulty: 2/5 — Shut off all power and verify zero voltage before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Reconnect secondary (24V) leads first, then primary (120V) leads last.
  • Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PG9YAA036060ACSS packaged gas furnace. Also fits select PG9YAA, PG9YAB, PG9MTAV, and 58HDV/58HDX series models — verify your unit's data plate and existing transformer rating (120V primary / 24V / 40VA) before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.

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 — PG9YAA036060ACSS?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Furnace Transformer 120V/24V 40VA — PG9YAA036060ACSS. 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 — PG9YAA036060ACSS?
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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