What are the specs for this Transformer?

The correct replacement for Carrier model C50A502062 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 C50A502062.

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 C50A502062

Name: OEM Carrier Transformer 40VA 120V/24V for C50A502062
Brand: Carrier
SKU: CARRIE-C50A502062-TRANSFORMER-HT01BD236
Price: 47.25 USD
Availability: InStock

SKU: CARRIE-C50A502062-TRANSFORMER-HT01BD236 Brand: Carrier

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OEM Carrier Control Transformer 40VA 120V to 24V for Model C50A502062

This OEM Carrier control transformer (part numbers HT01BD236 and HT01BD702) is the factory-specified replacement for the Carrier C50A502062 commercial packaged unit. The transformer steps down 120V line voltage to the 24V signal voltage required to power the control board, thermostat, contactor coil, and all low-voltage safety circuits. When the transformer fails, the entire control circuit goes dead — the thermostat displays nothing, the system refuses to respond to any call for heating or cooling, and in some cases a tripped secondary fuse will be the first clue.

Specs: 40VA rating | Primary: 120V | Secondary: 24V | Replaces OEM part numbers HT01BD236 and HT01BD702 | Factory-wound coil with thermal overload protection
OEM vs Generic: This is a genuine OEM Carrier transformer wound to exact VA and voltage tolerances. Generic transformers with undersized VA ratings can overheat under full control-circuit load, blowing the secondary fuse repeatedly and shortening the life of connected boards and contactors.
Install Difficulty: 2/5 — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (verify 24V output after install). Label or photograph all wire connections before removing the old transformer. Always check and replace the 3A secondary fuse if the old transformer failed due to overload.
Warranty: 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier C50A502062 commercial rooftop/packaged unit. Cross-reference OEM part numbers HT01BD236 and HT01BD702 to confirm fitment. Always verify primary voltage on your unit's data plate before ordering — some installations may use a 208/240V primary tap. Our HVAC parts specialists are available to confirm fitment before you purchase. In stock and ready to ship today.

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 C50A502062?

Yes. This is the factory-specified OEM transformer for the Carrier C50A502062. 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 C50A502062?

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 C50A502062

OEM Carrier Control Transformer 40VA 120V to 24V for Model C50A502062

Shipping Information

Return Policy

Frequently Asked Questions