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OEM Carrier Transformer 40VA 208/240V–24V for PY1PPB036060AAAA
Carrier

OEM Carrier Transformer 40VA 208/240V–24V for PY1PPB036060AAAA

SKU: CARRIE-PY1PPB036060AAAA-TRANSFORMER-HT01BD209 Brand: Carrier
✓ Guaranteed to fit PY1PPB036060AAAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Control Transformer 40VA 208/240V to 24V — HT01BD209 for Model PY1PPB036060AAAA

This is the factory-specified OEM control transformer for the Carrier PY1PPB036060AAAA packaged unit. The transformer steps down 208/240V line voltage to the 24V signal used by your thermostat, control board, gas valve, and every low-voltage component in the system. When the transformer fails, the entire control circuit goes dark — no thermostat response, no ignition sequence, no cooling or heating. A faulty transformer is often confirmed by measuring 0V AC on the secondary side while 208/240V is present at the primary.

  • Specs: OEM Part # HT01BD209 | Input: 208/240V primary | Output: 24V secondary | Power Rating: 40VA | Frequency: 50/60 Hz | Factory-matched to Carrier PY1PPB036060AAAA
  • OEM vs Generic: OEM transformers are wound and insulated to exact factory tolerances, ensuring stable 24V output under full VA load. Generic units can sag under load, causing intermittent lockouts, nuisance tripping of fuses, and premature control board failure.
  • Install Difficulty: 2/5 — Shut off all power at the disconnect and breaker before servicing. Tools needed: multimeter, flathead and Phillips screwdrivers, wire nuts or push-in connectors. Always verify 0V at primary terminals with a meter before touching wiring. Photograph existing wire connections before removal.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PY1PPB036060AAAA packaged units. The HT01BD209 also replaces legacy Carrier part numbers HT01CN232 and HT01CN233. Verify your unit's data plate for 208/240V primary supply before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — order with confidence 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 $99
  • 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 PY1PPB036060AAAA?
Yes. This is the factory-specified OEM transformer for the Carrier PY1PPB036060AAAA. 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 PY1PPB036060AAAA?
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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