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OEM Carrier Control Transformer 40VA 208/240V-24V — PY2PNB030060AB
Carrier

OEM Carrier Control Transformer 40VA 208/240V-24V — PY2PNB030060AB

SKU: CARRIE-PY2PNB030060AB-TRANSFORMER-HT01BD209 Brand: Carrier
✓ Guaranteed to fit PY2PNB030060AB — 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 for Model PY2PNB030060AB

The Carrier HT01BD209 is the factory-specified 40VA step-down control transformer for the PY2PNB030060AB packaged unit. Its sole job is to convert 208/240V line voltage down to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, gas valve, and control board. When this transformer fails, the result is complete and immediate: a blank thermostat, an unresponsive unit, and zero 24V signal at the secondary terminals. No transformer, no controls — full system lockout.

  • Specs: 208/240V Primary | 24V Secondary | 40VA Power Rating | 50/60 Hz | Compact footprint: 3.5" L × 2.2" W × 1.9" H
  • OEM vs Generic: This genuine Carrier OEM transformer is factory-wound to exact VA and impedance tolerances. Generic transformers often underdeliver VA capacity under load, causing nuisance board resets, brownouts on the 24V rail, and premature contactor coil failure. OEM is the only safe choice when the control circuit budget is tight.
  • Install difficulty: 2/5 — Shut off all power to the unit before proceeding. Tools needed: multimeter (verify 0V before touching), flathead and Phillips screwdrivers, needle-nose pliers. Photograph all wire connections before disconnecting. Confirm 24VAC output at secondary terminals after installation before restoring thermostat calls.
  • Warranty & Shipping: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff. Replaces superseded part numbers HT01BD207, HT01CN232, and 9076-00.

Compatibility: Designed for Carrier model PY2PNB030060AB packaged units. Verify input voltage (208V or 240V) on your unit's data plate before ordering — this transformer supports both taps. Cross-references: HT01BD207, HT01CN232, 9076-00, 4000A46E07AE28. Questions about fitment? Our HVAC parts team verifies compatibility before you order — call or chat 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 OEM Carrier Control Transformer 40VA 208/240V-24V — PY2PNB030060AB?
Yes. This is the factory-specified OEM transformer for the Carrier OEM Carrier Control Transformer 40VA 208/240V-24V — PY2PNB030060AB. 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 OEM Carrier Control Transformer 40VA 208/240V-24V — PY2PNB030060AB?
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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