What are the specs for this Transformer?

The correct replacement for Carrier model C4850C50ZN060600 — Ships Today 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 C4850C50ZN060600 — Ships Today.

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 40VA 120V to 24V Control Transformer for C4850C50ZN060600 — Ships Today

Name: OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50ZN060600 — Ships Today
Brand: Carrier
SKU: CARRIE-C4850C50ZN060600-TRANSFORMER-HT01BD236
Price: 47.25 USD
Availability: InStock

SKU: CARRIE-C4850C50ZN060600-TRANSFORMER-HT01BD236 Brand: Carrier

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OEM Carrier Control Transformer 40VA for Model C4850C50ZN060600

This OEM replacement control transformer (part# HT01BD236) is the factory-specified unit for the Carrier C4850C50ZN060600 packaged system. The transformer steps down 120V line voltage to 24V AC, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the result is a completely unresponsive system: the thermostat goes dark, no calls for heating or cooling are answered, and the unit will not operate at all. A failed transformer is often caused by a short in the low-voltage wiring or a faulty component drawing excessive current.

Specs: 40VA rating | 120V primary / 24V secondary | Factory-matched OEM design | Part number HT01BD236 | Engineered to exact Carrier electrical specifications
OEM vs Generic: OEM transformers are wound to precise VA ratings and insulation standards. Generic alternatives frequently underperform under sustained load, leading to premature burnout and repeated service calls.
Install Difficulty: 2/5 — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Before replacing, check for shorts in the 24V wiring that may have caused the original failure — a replacement transformer will burn out again if the underlying fault is not corrected.
Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier C4850C50ZN060600 packaged unit. Always verify your unit's data plate and existing transformer VA and voltage ratings before ordering. Our fitment team is available to confirm compatibility prior to purchase — order with confidence and get your system back online fast.

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 40VA 120V to 24V Con...

$47.25

Frequently Asked Questions

Does this Transformer fit my Carrier C4850C50ZN060600 — Ships Today?

Yes. This is the factory-specified OEM transformer for the Carrier C4850C50ZN060600 — Ships Today. 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 C4850C50ZN060600 — Ships Today?

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 40VA 120V to 24V Control Transformer for C4850C50ZN060600 — Ships Today

OEM Carrier Control Transformer 40VA for Model C4850C50ZN060600

Shipping Information

Return Policy

Frequently Asked Questions