Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / OEM Carrier Transformer FK4CNB006000A...
OEM Carrier Transformer FK4CNB006000AGAA for Model FK4CNB006000AGAA
Carrier

OEM Carrier Transformer FK4CNB006000AGAA for Model FK4CNB006000AGAA

SKU: carrier-transformer-fk4cnb006000agaa Brand: Carrier
$54.95

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

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

OEM Carrier Transformer FK4CNB006000AGAA for Model FK4CNB006000AGAA

This OEM Carrier transformer is the genuine replacement for the FK4CNB006000AGAA fan coil unit, supplying the low-voltage power that runs your system's control board, thermostat, and relays. It steps line voltage down to the 24V control circuit Carrier engineered for this equipment, ensuring stable, reliable operation. When a transformer fails, the unit may go completely dead, blow fuses, or lose thermostat communication—this factory part restores proper control power. Built to OEM specifications for the FK4CNB006000AGAA, it provides an exact electrical and physical match, avoiding the guesswork of generic substitutes. Installation is straightforward but should be performed by a qualified technician: power is disconnected, the failed transformer's wiring is documented and removed, and the new unit is mounted and rewired. Most replacements take 30 minutes or less with basic tools. Each transformer is brand-new and never refurbished. We stock this part and ship same-day on orders placed before 3PM CST, so your system is back online quickly. Order from NationalHVACParts.com for guaranteed OEM fit and dependable performance.

Compatibility

This part is compatible with Carrier model FK4CNB006000AGAA.

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 FK4CNB006000AGAA?
Yes. This is the factory-specified OEM transformer for the Carrier Model FK4CNB006000AGAA. 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 FK4CNB006000AGAA?
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.
Home Shop Search Account Cart