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Carrier

OEM Carrier Transformer ET01EZ238 for Model FB4CNP036L10ABAA

SKU: carrier-transformer-fb4cnp036l10abaa Brand: Carrier
$49.95

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

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OEM Carrier Transformer ET01EZ238 for Model FB4CNP036L10ABAA

This OEM Carrier transformer (ET01EZ238) converts incoming line voltage to the 24V control voltage required by the thermostat, control board, and sequencing relays in the Carrier FB4CNP036L10ABAA fan coil unit. A burned-out transformer commonly produces a totally dead system: no thermostat display, no blower, and no response at the air handler. This genuine Carrier component is manufactured to exact voltage and VA specifications, supplying stable control power and shielding downstream electronics from undervoltage faults. Installation is a moderate task for a licensed HVAC professional: disconnect power, tag and remove the primary and secondary wiring, mount the replacement, and reconnect the leads precisely. Inspect for shorted low-voltage wiring before installing to prevent another failure. Genuine OEM parts deliver the correct fit and lasting reliability that universal alternatives can't guarantee. We carry this transformer in stock and ship same-day on every order placed before 3PM CST. Restore dependable control power to your FB4CNP036L10ABAA with the correct Carrier transformer.

Compatibility

This part is compatible with Carrier model FB4CNP036L10ABAA.

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 FB4CNP036L10ABAA?
Yes. This is the factory-specified OEM transformer for the Carrier Model FB4CNP036L10ABAA. 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 FB4CNP036L10ABAA?
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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