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OEM Carrier Transformer Replacement Part for Model FC4DNF036015AAAA

SKU: carrier-transformer-fc4dnf036015aaaa Brand: Carrier
$56.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Transformer Replacement Part for Model FC4DNF036015AAAA

This genuine OEM Carrier transformer converts incoming line voltage to the 24-volt control power required by your FC4DNF036015AAAA fan coil unit's thermostat, control board, and relays. If your air handler is completely unresponsive, the thermostat is blank, or the blower won't kick on, a failed transformer is a likely cause. This exact-fit replacement restores stable low-voltage power and shields downstream controls from erratic behavior. Built to Carrier factory specifications, it provides the correct VA rating and winding configuration for safe, consistent performance. Installation is fairly simple for a qualified technician, involving only the disconnection of primary and secondary leads and remounting in the original position. Expect about 20 to 30 minutes with basic hand tools. Always cut power at the breaker before servicing and confirm wiring with a multimeter. Genuine OEM transformers avoid compatibility problems and protect your system warranty. We stock this part and ship same-day on orders placed before 3PM CST. Order now to restore reliable control power to your Carrier air handler.

Compatibility

This part is compatible with Carrier model FC4DNF036015AAAA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Transformer fit my Carrier Model FC4DNF036015AAAA?
Yes. This is the factory-specified OEM transformer for the Carrier Model FC4DNF036015AAAA. 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 Model FC4DNF036015AAAA?
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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