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OEM Carrier Transformer 50VA 120/208/240-24V for YAC36100YAC307AC
Carrier

OEM Carrier Transformer 50VA 120/208/240-24V for YAC36100YAC307AC

SKU: CARRIE-YAC36100YAC307AC-TRANSFORMER-P201-35150 Brand: Carrier

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Texas CMBL #19328542014
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OEM Carrier 50VA Control Transformer P201-35150 for Model YAC36100YAC307AC

This is the genuine OEM replacement control transformer for the Carrier YAC36100YAC307AC HVAC system, sold under Carrier part number P201-35150. The transformer steps down line voltage from 120/208/240 VAC to a safe 12/24 VAC output that powers your system's control board, thermostat, and low-voltage accessory circuits. When this transformer fails, the entire control circuit goes dead — symptoms include a blank thermostat display, a system that won't respond to any call for heating or cooling, or a tripped circuit due to a shorted secondary. Replacing it with the correct OEM part restores full factory-spec voltage regulation and protects downstream electronics.

  • Specs: 50 VA rating | Primary: 120/208/240 VAC multi-tap | Secondary: 12/24 VAC | 60 Hz | Single-phase | CSA listed | Dimensions approx. 3.8″L × 3.1″W × 2.2″H
  • OEM vs Generic: This is a genuine Carrier/Totaline factory-authorized part. Generic transformers often carry loose VA tolerances and inferior insulation ratings, risking nuisance trips or premature failure of the control board it's designed to protect.
  • Install difficulty: 3/5 — Shut off all power at the breaker and disconnect switch before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, needle-nose pliers, multimeter (to verify 24VAC output after install). Label and photograph all low-voltage wiring before disconnecting. Confirm primary tap matches your supply voltage.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model YAC36100YAC307AC. Also cross-references Totaline part number P201-35150. Verify your unit's supply voltage (120V or 208/240V) and confirm the correct primary tap before installation. Need fitment help? Our HVAC parts specialists verify compatibility before you order — contact us today and get your system back online fast.

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 YAC36100YAC307AC?
Yes. This is the factory-specified OEM transformer for the Carrier YAC36100YAC307AC. 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 YAC36100YAC307AC?
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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