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OEM Carrier Transformer 460V Pri 230V Sec 1564VA — PY4GEWA36090AA
Carrier

OEM Carrier Transformer 460V Pri 230V Sec 1564VA — PY4GEWA36090AA

SKU: CARRIE-PY4GEWA36090AA-TRANSFORMER-HT01BC701 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Transformer 460V Primary / 230V Secondary 1564VA for Model PY4GEWA36090AA

This is the genuine OEM factory replacement transformer (part number HT01BC701) for the Carrier PY4GEWA36090AA packaged rooftop unit. This heavy-duty step-down transformer converts 460V primary voltage to 230V secondary at 1564VA, supplying stable power to downstream control circuits and critical system loads. When this transformer fails, the entire unit may go dark — no thermostat response, no contactor actuation, and no blower or compressor operation. Replacing the transformer is the first diagnostic step when all control-circuit functions are lost simultaneously.

  • Specs: 460V primary | 230V secondary | 1564VA rating | OEM part number HT01BC701 | Manufactured by Basler Electric (Factory Authorized Parts)
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part, wound and rated to exact OEM specifications. Generic transformers frequently underperform rated VA capacity, causing voltage sag under load and premature control board failure.
  • Install difficulty: 3/5 — This is a high-voltage commercial application (460V primary). Disconnect and lockout/tagout all power before servicing. Tools needed: multimeter, insulated screwdrivers, wire strippers, and torque-rated terminal connectors. Always verify primary and secondary voltages before energizing. Professional installation strongly recommended.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PY4GEWA36090AA packaged rooftop unit and other select Carrier, Bryant, and Payne RTU, heat pump, and packaged unit platforms using a 460V/230V 1564VA transformer. Always verify voltage ratings and VA requirements on your unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us today and ship the same business day.

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 $75
  • 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 Transformer 460V Pri 230V Sec 1564VA — PY4GEWA36090AA?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Transformer 460V Pri 230V Sec 1564VA — PY4GEWA36090AA. 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 Transformer 460V Pri 230V Sec 1564VA — PY4GEWA36090AA?
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
HVAC Parts Specialist — Online