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OEM Carrier Transformer for Model FIOP300E511GA HVAC Control Part
Carrier

OEM Carrier Transformer for Model FIOP300E511GA HVAC Control Part

SKU: carrier-transformer-fiop300e511ga Brand: Carrier
$44.95

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

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OEM Carrier Transformer for Model FIOP300E511GA HVAC Control Part

This genuine OEM Carrier transformer supplies the low-voltage control power that runs your FIOP300E511GA system's thermostat, control board, relays, and safety circuits. It steps down 120V or 240V line voltage to the 24V control voltage that your furnace's electronics require. When a transformer fails—often from a control short or power surge—the unit goes completely dead: no thermostat response, no ignition, no blower. Replacing it with this OEM component restores full control-circuit operation with the exact VA rating and voltage taps Carrier specified for the FIOP300E511GA, avoiding the under-rating problems common with generic substitutes. Installation is moderate difficulty: with power disconnected, a knowledgeable installer transfers the primary and secondary leads and remounts the transformer in roughly 30 minutes. Because a blown transformer usually points to an underlying short, we recommend a licensed HVAC technician diagnose the root cause before replacement. Orders placed before 3PM CST ship same-day from our warehouse for fast turnaround. Trust genuine Carrier parts for dependable, long-lasting control power.

Compatibility

This part is compatible with Carrier model FIOP300E511GA.

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 FIOP300E511GA HVAC Control Part?
Yes. This is the factory-specified OEM transformer for the Carrier Model FIOP300E511GA HVAC Control Part. 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 FIOP300E511GA HVAC Control Part?
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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