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OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50ZG060600 — Ships Today
Carrier

OEM Carrier 40VA 120V to 24V Control Transformer for C4850C50ZG060600 — Ships Today

SKU: CARRIE-C4850C50ZG060600-TRANSFORMER-HT01BD236 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 40VA Control Transformer for Model C4850C50ZG060600

This is the OEM factory-specified control circuit transformer (part# HT01BD236) for the Carrier C4850C50ZG060600 packaged unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, contactor coil, gas valve, and all low-voltage controls. When it fails — due to a shorted control wire, failed component, or age — nothing in the system will respond: the thermostat goes dark, the contactor won't pull in, and the unit sits completely dead with no call for heat or cool.

  • Specs: 40VA rated | 120V primary / 24V secondary | Replaces OEM part number HT01BD236 | Factory-matched for Carrier packaged unit control boards
  • OEM vs Generic: The OEM HT01BD236 transformer is wound and potted to Carrier's exact VA rating and insulation class. Undersized generic units can overheat and fail prematurely — or worse, blow again if an underlying fault hasn't been cleared.
  • Install difficulty: 2/5 — Disconnect power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install and locate any short before replacing the transformer). Always identify and clear any short-circuit fault on the 24V side before installing the new unit.
  • Warranty: 1-year OEM factory warranty. Orders ship the same business day from our warehouse when placed before cutoff.

Compatibility: Designed specifically for the Carrier C4850C50ZG060600 5-ton packaged unit. Verify OEM part number HT01BD236 on your existing transformer's label or equipment wiring diagram before ordering. If your data plate lists a different transformer part number, contact our fitment team before purchasing — we verify compatibility before every order ships.

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 C4850C50ZG060600 — Ships Today?
Yes. This is the factory-specified OEM transformer for the Carrier C4850C50ZG060600 — 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 C4850C50ZG060600 — 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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Mike Rivera
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