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OEM Carrier Transformer 40VA 120V/24V for C50A506062
Carrier

OEM Carrier Transformer 40VA 120V/24V for C50A506062

SKU: CARRIE-C50A506062-TRANSFORMER-HT01BD236 Brand: Carrier

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Texas CMBL #19328542014
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OEM Carrier Control Transformer 40VA 120V to 24V for Model C50A506062

This OEM control transformer is the factory-specified replacement for the Carrier C50A506062 commercial rooftop unit. The transformer steps down line voltage from 120V to the 24V AC needed to power the control board, thermostat circuit, and all low-voltage components. When it fails, the entire control circuit goes dead — the thermostat loses signal, the system won't respond to any call for heating or cooling, and no diagnostic codes will display. A failed transformer is often misdiagnosed as a bad control board, so always test the transformer first.

  • Specs: 40VA rated | Primary: 120V | Secondary: 24V AC | OEM part numbers HT01BD236 and HT01BD702 | Designed for Carrier commercial rooftop applications
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by the C50A506062 control circuit. Undersized or off-spec generic units can overheat, trip thermal protection, or damage downstream control boards — costing far more to repair.
  • Install difficulty: 2/5 — Disconnect all power before servicing. Tools needed: multimeter (verify primary/secondary voltages before and after), flathead and Phillips screwdrivers, wire nuts or spade connectors. Check for a blown fuse or short in the 24V circuit before installing the new transformer to avoid immediate repeat failure.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier C50A506062 commercial packaged rooftop unit. Cross-references OEM part numbers HT01BD236 and HT01BD702. Always verify your unit's data plate and existing transformer VA/voltage ratings before ordering. Our parts specialists are available to confirm fitment prior to purchase — same-day shipping 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

Frequently Asked Questions

Does this Transformer fit my Carrier C50A506062?
Yes. This is the factory-specified OEM transformer for the Carrier C50A506062. 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 C50A506062?
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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Mike Rivera
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