What are the specs for this Transformer?

The correct replacement for Carrier model FX4DNF061L10ACAA 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 FX4DNF061L10ACAA.

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 FX4DNF061L10ACAA

Name: OEM Carrier Transformer 40VA 120V/24V for FX4DNF061L10ACAA
Brand: Carrier
SKU: CARRIE-FX4DNF061L10ACAA-TRANSFORMER-HT01CN241
Price: 47.25 USD
Availability: InStock

SKU: CARRIE-FX4DNF061L10ACAA-TRANSFORMER-HT01CN241 Brand: Carrier

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OEM Carrier Control Transformer 40VA for Model FX4DNF061L10ACAA

This OEM control transformer (part# HT01CN241) is the factory-specified replacement for the Carrier FX4DNF061L10ACAA air handler. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, control board, and safety circuits. When it fails, the entire low-voltage control circuit goes dead — your thermostat loses power, nothing responds, and the system won't start at all. A failed transformer is one of the most common causes of a completely unresponsive HVAC system.

Specs: 40VA rated | 120V primary / 24V secondary | Class 2 transformer | Factory-matched OEM replacement for part# HT01CN241
OEM vs Generic: This OEM unit is wound to exact factory specifications, ensuring proper VA capacity for all connected loads. Undersized generic transformers are prone to overheating and premature burnout, especially in systems with zone controllers or multiple accessories drawing from the 24V circuit.
Install difficulty: 2/5 — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always verify 24V output after installation before restoring system power. Label wires before disconnecting.
Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier FX4DNF061L10ACAA fan coil air handler. Always verify your existing transformer's VA rating and primary/secondary voltage from the unit data plate or wiring diagram before ordering. If you're unsure of fitment, our parts team is ready to verify compatibility before you buy — same-day shipping available on all in-stock orders.

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 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 FX4DNF061L10ACAA?

Yes. This is the factory-specified OEM transformer for the Carrier FX4DNF061L10ACAA. 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 FX4DNF061L10ACAA?

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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OEM Carrier Transformer 40VA 120V/24V for FX4DNF061L10ACAA

OEM Carrier Control Transformer 40VA for Model FX4DNF061L10ACAA

Shipping Information

Return Policy

Frequently Asked Questions