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OEM Carrier Transformer 40VA 120V/24V for YAC36100YAC307
Carrier

OEM Carrier Transformer 40VA 120V/24V for YAC36100YAC307

SKU: CARRIE-YAC36100YAC307-TRANSFORMER-P201-35150 Brand: Carrier
✓ Guaranteed to fit YAC36100YAC307 — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 40VA Control Transformer P201-35150 for Model YAC36100YAC307

This OEM control transformer (part number P201-35150) is the factory-specified replacement for the Carrier YAC36100YAC307 condensing unit. The transformer steps down 120V line voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the entire system goes dark: the thermostat loses communication, the contactor won't energize, and nothing responds. A failed transformer is one of the most common causes of a completely unresponsive HVAC system.

  • Specs: 40VA rating | 120V primary → 24V secondary | OEM factory-matched impedance and thermal protection | Designed for Carrier YAC36100YAC307 control circuit requirements
  • OEM vs Generic: The OEM P201-35150 transformer is wound and rated to Carrier's exact VA and voltage tolerance specifications. Generic transformers may be under-rated in VA, causing overheating, nuisance tripping, or premature failure under full control-circuit load.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Always label or photograph existing wire connections before removing the old transformer.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier YAC36100YAC307 condensing unit. Verify your unit's control voltage and VA requirements on the data plate inside the access panel before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you purchase — contact us anytime.

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 YAC36100YAC307?
Yes. This is the factory-specified OEM transformer for the Carrier YAC36100YAC307. 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 YAC36100YAC307?
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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