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OEM Carrier Transformer 50VA 120/208/240-12/24V for YAC3680YAC106
Carrier

OEM Carrier Transformer 50VA 120/208/240-12/24V for YAC3680YAC106

SKU: CARRIE-YAC3680YAC106-TRANSFORMER-P201-35150 Brand: Carrier
✓ Guaranteed to fit YAC3680YAC106 — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Control Circuit Transformer 50VA 120/208/240-12/24V for Model YAC3680YAC106

This genuine OEM Carrier transformer (part number P201-35150) is the factory-specified replacement for the Carrier YAC3680YAC106 HVAC system. The transformer steps down incoming line voltage (120/208/240V AC) to a safe 12/24V AC output that powers all low-voltage control circuits — including the thermostat, control board, and contactor coil. When this part fails, the entire control circuit goes dark: your thermostat becomes unresponsive, the system won't start, and in some cases the blower may run continuously without heating or cooling. Replacing a failed transformer is one of the most cost-effective repairs in HVAC service.

  • Specs: 50VA rating | Primary: 120/208/240V AC | Secondary: 12/24V AC | Single-phase | 60 Hz | CSA listed | Dimensions: 3.8"L × 3.1"W × 2.2"H | Weight: 2.3 lbs
  • OEM vs Generic: This is a genuine Carrier/Totaline factory part (P201-35150), built to exact VA and voltage tolerances. Off-brand transformers frequently run under-rated VA, causing thermal overload trips and premature failure — especially under high-demand multi-zone control loads.
  • Install difficulty: 3/5 — Always shut off power at the disconnect and breaker before servicing. Tools needed: multimeter (verify 0V before touching terminals), flathead and Phillips screwdrivers, wire stripper, needle-nose pliers. Label all wires before disconnecting. Verify secondary output voltage after installation before restoring full power.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed and factory-matched for the Carrier YAC3680YAC106. Also cross-references Totaline P201-35150 and Carrier part HCTY156D0LS11102. Verify primary voltage configuration (120V vs 208/240V) against your unit's data plate before ordering. Our team is available to confirm fitment before you buy — don't guess on a control circuit component.

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 YAC3680YAC106?
Yes. This is the factory-specified OEM transformer for the Carrier YAC3680YAC106. 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 YAC3680YAC106?
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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