Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Furnace Transformer 40VA 120V-24V — PG8DAA060135ADJA
Carrier

OEM Carrier Furnace Transformer 40VA 120V-24V — PG8DAA060135ADJA

SKU: CARRIE-PG8DAA060135ADJA-TRANSFORMER-HT01BC116 Brand: Carrier
✓ Guaranteed to fit PG8DAA060135ADJA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Furnace Control Transformer 40VA 120V/24V for Model PG8DAA060135ADJA

This OEM step-down transformer is the factory-specified replacement for the Carrier PG8DAA060135ADJA gas furnace. It converts 120V line voltage to the 24V AC signal that powers every low-voltage component in the system — the thermostat, gas valve, inducer relay, and control board. When this transformer fails, the furnace goes completely dark: the thermostat loses signal, the board stops responding, and the heating cycle never initiates. If your furnace shows no response to a thermostat call and 24V is absent between the R and C terminals on the board, this transformer is the most likely culprit.

  • Specs: 40VA capacity | 120V primary input | 24V secondary output | 60 Hz | Single phase | Wire lead connection type | Compact foot-mount design (approx. 3″ L × 2.1″ W × 2″ H)
  • OEM vs Generic: This is a genuine OEM Carrier transformer shipped in a factory-authorized parts box. Generic transformers frequently run outside VA tolerance, causing nuisance board shutdowns, intermittent thermostat dropouts, and premature low-voltage component failure.
  • Install difficulty: 2/5 — Power down and lock out the furnace at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 0V before touching wires). Photograph all wiring connections before disconnecting. The transformer mounts to the blower deck or control panel with two screws; wire leads connect to push-on terminals.
  • Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered by 3 PM local time.

Compatibility: Direct OEM replacement for Carrier model PG8DAA060135ADJA gas furnace. Part number HT01BC116 has been factory-superseded by updated OEM part HT680054 — our listing ships the current production unit, which is a direct drop-in with no modification required. Also cross-references to HT01BC115, HT01BB126, HT01CT120, HT01BC120, and several other legacy Carrier/Bryant/Payne transformer part numbers. Verify your unit's control board calls for a 40VA 120V/24V transformer before ordering.

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 40VA 120V-24V — PG8DAA060135ADJA?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Furnace Transformer 40VA 120V-24V — PG8DAA060135ADJA. 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 40VA 120V-24V — PG8DAA060135ADJA?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online