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OEM Carrier Transformer 50VA 120/240-24V for UPFLOW100FAU14A
Carrier

OEM Carrier Transformer 50VA 120/240-24V for UPFLOW100FAU14A

SKU: CARRIE-UPFLOW100FAU14A-TRANSFORMER-P201-35150 Brand: Carrier

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 50VA Control Transformer P201-35150 for Model UPFLOW100FAU14A

This is the genuine OEM factory-specified step-down transformer for the Carrier UPFLOW100FAU14A upflow air handler. The transformer converts incoming line voltage (120/208/240 VAC) down to a safe 12/24 VAC to power your system's control board, thermostat, and all low-voltage control circuits. When this transformer fails, your system goes completely silent — no thermostat response, no blower operation, and no error codes — because the entire control circuit loses power.

  • Specs: 50VA rating | Primary: 120/208/240 VAC | Secondary: 12/24 VAC | 60 Hz | Single-phase | CSA listed | OEM part number P201-35150
  • OEM vs Generic: This is a genuine Carrier/Totaline factory part built to exact VA and voltage tolerance specifications. Generic transformers often run undersized VA ratings, causing overheating, nuisance tripping of the internal fuse, and premature failure — especially in systems with zone boards or multiple low-voltage accessories.
  • Install difficulty: 2/5 — Shut off all power at the breaker and disconnect switch before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, and a multimeter to confirm 24V output after installation. Label all wiring connections before disconnecting. The transformer mounts to the cabinet panel and connects via quick-connect or screw terminals.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier UPFLOW100FAU14A upflow air handler. Verify your unit's data plate confirms 50VA transformer usage and 120/208/240 VAC primary voltage before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before every order — contact us and we'll confirm.

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 UPFLOW100FAU14A?
Yes. This is the factory-specified OEM transformer for the Carrier UPFLOW100FAU14A. 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 UPFLOW100FAU14A?
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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