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OEM Carrier Transformer ER11G055 for Model FA4ANF036010AGAA

SKU: carrier-transformer-fa4anf036010agaa Brand: Carrier
$34.95

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

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OEM Carrier Transformer ER11G055 for Model FA4ANF036010AGAA

Power your Carrier FA4ANF036010AGAA air handler's control circuit with this genuine OEM ER11G055 transformer. The transformer steps line voltage down to the 24-volt control voltage your thermostat, relays, and control board require to operate, making it essential to the entire low-voltage system. A burned-out transformer leaves you with a dead thermostat, an unresponsive blower, and a system that won't start at all. This OEM transformer is matched to the voltage and VA rating of the FA4ANF036010AGAA for safe, reliable operation and direct compatibility. Replacement is a manageable repair for a technician or experienced DIYer: shut off power, note the primary and secondary lead connections, transfer the wires to the matching terminals, and mount the new transformer, typically in 20 to 30 minutes. Verify the primary voltage and 24V secondary before energizing. We keep this authentic Carrier transformer in stock and ship same-day on orders placed before 3PM CST. Shop NationalHVACParts.com for genuine HVAC parts and fast shipping.

Compatibility

This part is compatible with Carrier model FA4ANF036010AGAA.

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 FA4ANF036010AGAA?
Yes. This is the factory-specified OEM transformer for the Carrier Model FA4ANF036010AGAA. 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 FA4ANF036010AGAA?
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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