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OEM Carrier Transformer 40VA 120V-24V for FA4ANC036008AGAA
Carrier

OEM Carrier Transformer 40VA 120V-24V for FA4ANC036008AGAA

SKU: CARRIE-FA4ANC036008AGAA-TRANSFORMER-HT01CN236 Brand: Carrier

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Transformer 40VA 120V-24V for Model FA4ANC036008AGAA

This is the OEM factory-specified transformer (part number HT01CN236) for the Carrier FA4ANC036008AGAA air handler. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, control board, and low-voltage control circuit. When the transformer fails, the entire control circuit goes dark — the thermostat goes blank, the system won't respond to any call for heating or cooling, and you may notice a burning smell or a tripped fuse on the secondary side.

  • Specs: 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01CN236 | Factory-matched output tolerances for stable low-voltage operation
  • OEM vs Generic: OEM transformers are wound to exact VA and voltage specifications for the Carrier FA4ANC036008AGAA control board. Undersized or off-tolerance generic units can overheat, blow the secondary fuse repeatedly, or damage the control board over time.
  • Install difficulty: 2/5 — Shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade terminals. Always verify 0V at primary leads before touching wiring. Label all low-voltage wires before disconnecting.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier FA4ANC036008AGAA air handler. Verify your existing transformer's VA rating and primary/secondary voltages on the unit data plate or transformer label before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — just reach out.

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 FA4ANC036008AGAA?
Yes. This is the factory-specified OEM transformer for the Carrier FA4ANC036008AGAA. 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 FA4ANC036008AGAA?
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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