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OEM Carrier Transformer 50VA 120/240-24V for UPFLOW125FAUHAC14
Carrier

OEM Carrier Transformer 50VA 120/240-24V for UPFLOW125FAUHAC14

SKU: CARRIE-UPFLOW125FAUHAC14-TRANSFORMER-P201-35150 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 50VA Control Transformer 120/208/240–12/24V for Model UPFLOW125FAUHAC14

This OEM step-down transformer is the factory-specified replacement for the Carrier UPFLOW125FAUHAC14 upflow gas furnace. Its job is critical: it converts high-voltage line power (120, 208, or 240 VAC) down to a safe 12/24 VAC used by the control board, thermostat, and all low-voltage safety circuits. When this transformer fails, the entire control circuit goes dark — you'll see a blank thermostat display, no response to heat calls, or a furnace that won't attempt ignition at all.

  • Specs: 50 VA rating | Primary voltage: 120/208/240 VAC | Secondary voltage: 12/24 VAC | Single phase | 60 Hz | CSA listed | OEM part number P201-35150
  • OEM vs Generic: This is a genuine Carrier/Totaline factory part. Off-brand transformers often run undersized VA ratings that cause overheating, nuisance tripping, or premature control board damage. OEM guarantees exact impedance matching and thermal protection spec.
  • Install difficulty: 2/5 — Turn off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. Verify primary voltage tap matches your line voltage before energizing.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Fits Carrier model UPFLOW125FAUHAC14. This transformer also carries the Totaline cross-reference P201-35150 / HCTY156D0LS11102. Always verify your unit's data plate voltage and VA requirement before ordering. Our HVAC specialists are available to confirm fitment — just reach out before you buy. Order today and this ships same business day.

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 UPFLOW125FAUHAC14?
Yes. This is the factory-specified OEM transformer for the Carrier UPFLOW125FAUHAC14. 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 UPFLOW125FAUHAC14?
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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