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OEM Carrier Transformer EC39ST106 for Model FIOP200C501GA
Carrier

OEM Carrier Transformer EC39ST106 for Model FIOP200C501GA

SKU: carrier-transformer-fiop200c501ga Brand: Carrier
$59.95

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

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OEM Carrier Transformer EC39ST106 for Model FIOP200C501GA

This genuine OEM Carrier transformer converts incoming line voltage to the 24-volt control power that drives the thermostat, relays, contactor coil, and safety circuits in your FIOP200C501GA unit. A failed transformer kills the entire low-voltage side: the thermostat goes dark, no heating or cooling call gets through, and the system sits unresponsive. Built to Carrier's exact primary and secondary voltage and VA rating, this transformer is a direct factory replacement for the FIOP200C501GA, supplying clean, correctly rated power to the control board and accessories. Installation is a moderate, DIY-friendly job: shut off power, label the primary and secondary leads, unbolt the bracket, and wire the new transformer identically. Most installs take 20 to 30 minutes with basic tools and a meter to verify 24V output. Choosing the correct OEM transformer prevents under-voltage faults and erratic operation caused by mismatched VA ratings. We keep this part in stock and ship same-day on orders before 3PM CST, restoring control power fast. Check for a blown low-voltage fuse before replacing the transformer.

Compatibility

This part is compatible with Carrier model FIOP200C501GA.

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 FIOP200C501GA?
Yes. This is the factory-specified OEM transformer for the Carrier Model FIOP200C501GA. 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 FIOP200C501GA?
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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