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OEM Carrier Transformer 50VA 120/240-24V — YAC48110YACX304AC
Carrier

OEM Carrier Transformer 50VA 120/240-24V — YAC48110YACX304AC

SKU: CARRIE-YAC48110YACX304AC-TRANSFORMER-P201-35150 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 50VA Control Transformer (P201-35150) for Model YAC48110YACX304AC

This is the genuine OEM factory-replacement control transformer for the Carrier YAC48110YACX304AC packaged unit. The transformer steps down high-voltage line power (120/208/240 VAC) to the safe low-voltage (12/24 VAC) needed to energize your system's control board, thermostat circuit, and all 24V control components. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system won't call for heating or cooling, and the unit will not respond to any commands. Replacing it with the correct OEM part restores factory-spec voltage regulation and protects your downstream control electronics from damage.

  • Specs: 50VA rating | Primary: 120/208/240 VAC | Secondary: 12/24 VAC | Single phase | 60 Hz | CSA listed | Part # P201-35150
  • OEM vs Generic: This genuine Carrier/Totaline OEM transformer is wound to exact factory VA and voltage tolerances. Undersized or off-spec aftermarket units can sag under load, causing erratic board behavior, nuisance lockouts, or premature control board failure.
  • Install difficulty: 2/5 — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire labels or tape. Photograph all wiring connections before removal. Confirm primary input voltage matches your supply before energizing.
  • Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model YAC48110YACX304AC. Always verify your unit's data plate voltage rating matches the transformer's primary input spec (120/208/240 VAC) before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — order with confidence and get back up and running 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 $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 50VA 120/240-24V — YAC48110YACX304AC?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Transformer 50VA 120/240-24V — YAC48110YACX304AC. 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 50VA 120/240-24V — YAC48110YACX304AC?
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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