Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Transformer 40VA 120V to 24V for C48A202062 — Ships Today
Carrier

OEM Carrier Transformer 40VA 120V to 24V for C48A202062 — Ships Today

SKU: CARRIE-C48A202062-TRANSFORMER-HT01BD236 Brand: Carrier

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Control Transformer 40VA 120V to 24V for Model C48A202062

This OEM replacement control transformer is the factory-specified unit for the Carrier C48A202062 packaged system. The transformer steps down line voltage (120V) to the low-voltage control circuit (24V) that powers your thermostat, contactor coil, and all control board logic. When it fails, nothing works — the thermostat goes blank, the system won't respond to any call for heating or cooling, and you may find a blown fuse on the control board. Replaces OEM part numbers HT01BD236 and HT01BD702.

  • Specs: 40VA rating | Primary: 120V | Secondary: 24V | Designed for Carrier C48A202062 packaged unit control circuits | Factory-matched output voltage tolerance
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage specifications, ensuring stable 24V output under full load. Undersized or off-tolerance generic transformers can overheat, blow fuses repeatedly, or cause nuisance lockouts across the control board.
  • Install difficulty: 2/5 — Disconnect power at the breaker and verify zero voltage before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter. Photograph all wiring connections before removal. Secondary output should measure 24–26V AC when confirmed good.
  • Warranty: 1-year OEM factory warranty. Orders ship same business day from our warehouse when placed before cutoff.

Compatibility: Engineered specifically for the Carrier C48A202062 packaged unit. Cross-references OEM part numbers HT01BD236 and HT01BD702. Always verify your unit's control board voltage requirements and VA load against your data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping means your part arrives fast and your system is back online sooner.

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 C48A202062 — Ships Today?
Yes. This is the factory-specified OEM transformer for the Carrier C48A202062 — 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 C48A202062 — 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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online