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 Transformer 75VA 208/240/480V–24V for PH3PNA060000AA
Carrier

OEM Carrier Transformer 75VA 208/240/480V–24V for PH3PNA060000AA

SKU: CARRIE-PH3PNA060000AA-TRANSFORMER-HT01BD242 Brand: Carrier
✓ Guaranteed to fit PH3PNA060000AA — 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 Transformer 75VA 208/240/480V to 24V for Model PH3PNA060000AA

This is the factory OEM replacement transformer (part number HT01BD242) for the Carrier PH3PNA060000AA packaged unit. The transformer steps down high-voltage primary power (208/240/480V) to the 24V AC signal that powers your entire control circuit — including the thermostat, contactor coil, gas valve, and control board. When the transformer fails, nothing in the system responds: the thermostat goes blank, the unit won't cycle, and you may measure 0V on the secondary side with a multimeter. This is one of the first components to check when a system is completely unresponsive.

  • Specs: 75VA rating | 208/240/480V primary | 24VAC secondary | 50/60 Hz | Foot-mount configuration | OEM part number HT01BD242
  • OEM vs Generic: This is a genuine Carrier OEM transformer wound to exact VA and voltage tolerances. Undersized or off-tolerance aftermarket transformers can overheat, trip their internal thermal fuse prematurely, or fail to hold coil voltage under full load — taking out downstream components with them.
  • Install difficulty: 2/5 — Shut off all power to the unit before starting. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter. Photograph or label all wiring before disconnecting. Verify 24V output on secondary terminals before closing the panel.
  • Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Designed for the Carrier PH3PNA060000AA packaged unit. Also fits across Carrier, Bryant, Payne, and ICP family equipment sharing the HT01BD242 specification. Always verify your unit's data plate primary voltage (208V, 240V, or 480V) matches this transformer before ordering. Questions about fitment? Our parts team confirms compatibility before you buy — contact us 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 PH3PNA060000AA?
Yes. This is the factory-specified OEM transformer for the Carrier PH3PNA060000AA. 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 PH3PNA060000AA?
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