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OEM Carrier Transformer 40VA 120V/24V for FC4CNF060000AAAA
Carrier

OEM Carrier Transformer 40VA 120V/24V for FC4CNF060000AAAA

SKU: CARRIE-FC4CNF060000AAAA-TRANSFORMER-HT01CN241 Brand: Carrier

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Texas CMBL #19328542014
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OEM Carrier 40VA Control Transformer for Model FC4CNF060000AAAA

This OEM replacement transformer (part number HT01CN241) is the factory-specified control circuit transformer for the Carrier FC4CNF060000AAAA fan coil unit. The transformer steps line voltage (120V) down to 24V AC to power the thermostat, control board, and all low-voltage switching circuits throughout the system. When the transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system will not respond to any calls for heating or cooling, and nothing works. A failed transformer is often caused by a short in the low-voltage wiring or a stuck contactor coil drawing excessive current.

  • Specs: 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01CN241 | Factory-matched for Carrier FC4CNF060000AAAA fan coil units
  • OEM vs Generic: This OEM transformer is wound to exact factory VA and impedance specifications, ensuring stable 24V output under full control-circuit load. Generic transformers may underperform at rated VA, causing erratic thermostat behavior, nuisance trips, or premature failure.
  • Install difficulty: 2/5 — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (verify 0V before touching terminals), wire nuts or spade connectors. Always check low-voltage wiring for shorts before installing the new transformer to prevent repeat failure.
  • Warranty: 1-year OEM factory warranty. Orders placed by 3PM ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier FC4CNF060000AAAA fan coil unit. Verify your existing transformer's VA rating and primary/secondary voltages on the data plate before ordering. If you're unsure of fitment, our HVAC parts specialists confirm compatibility before you buy — no guesswork, no returns.

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 FC4CNF060000AAAA?
Yes. This is the factory-specified OEM transformer for the Carrier FC4CNF060000AAAA. 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 FC4CNF060000AAAA?
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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