What are the specs for this Transformer?

The correct replacement for Carrier model FC4DNB060000AAAA is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Carrier equipment which lists the model number FC4DNB060000AAAA.

Is this transformer compatible with Bryant or Payne systems too?

Many Carrier parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Carrier

OEM Carrier Transformer 40VA 120V-24V for FC4DNB060000AAAA

Name: OEM Carrier Transformer 40VA 120V-24V for FC4DNB060000AAAA
Brand: Carrier
SKU: CARRIE-FC4DNB060000AAAA-TRANSFORMER-HT01CN241
Price: 47.25 USD
Availability: InStock

SKU: CARRIE-FC4DNB060000AAAA-TRANSFORMER-HT01CN241 Brand: Carrier

✓ Guaranteed to fit FC4DNB060000AAAA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

OEM Carrier Control Transformer 40VA 120V/24V for Model FC4DNB060000AAAA

This is the factory OEM replacement control transformer (part number HT01CN241) for the Carrier FC4DNB060000AAAA air handler. The transformer steps down line voltage from 120V to the 24V signal required by your thermostat, control board, and all low-voltage control circuits. When this transformer fails, the result is typically a completely unresponsive thermostat, a blank display, or a system that refuses to respond to any heating or cooling calls — because nothing in the control circuit has power.

Specs: 40VA capacity | Primary voltage: 120V | Secondary voltage: 24V | OEM part number HT01CN241 | Factory-matched for Carrier FC4DNB060000AAAA air handlers
OEM vs Generic: This OEM transformer is wound to exact factory VA and voltage tolerances. Undersized or off-spec generic transformers can sag under load, causing erratic thermostat behavior, nuisance tripping of the secondary fuse, and premature control board failure.
Install difficulty: 2/5 — Shut off all power to the air handler at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph existing wiring before disconnecting. Replacement is straightforward once the control box is accessed.
Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Designed specifically for the Carrier FC4DNB060000AAAA fan coil air handler. Always verify your existing transformer's VA rating and primary/secondary voltages on the unit data plate or original part label before ordering. Our parts specialists are available to confirm fitment prior to purchase — same-day shipping available on all in-stock OEM 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 $99
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 info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Carrier Transformer 40VA 120...

$47.25

Frequently Asked Questions

Does this Transformer fit my Carrier FC4DNB060000AAAA?

Yes. This is the factory-specified OEM transformer for the Carrier FC4DNB060000AAAA. 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 FC4DNB060000AAAA?

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.

Menu

OEM Carrier Transformer 40VA 120V-24V for FC4DNB060000AAAA

OEM Carrier Control Transformer 40VA 120V/24V for Model FC4DNB060000AAAA

Shipping Information

Return Policy

Frequently Asked Questions