OEM Carrier Control Transformer 40VA 208/230V–24V for Model PY2PNB024060NC

This genuine OEM control transformer is the factory-specified replacement for the Carrier PY2PNB024060NC packaged unit. The transformer steps down 208/230V line voltage to the 24V DC signal that powers your thermostat, control board, gas valve coil, and contactor coil. When this part fails, the entire low-voltage control circuit goes dead — the thermostat goes blank, the system will not respond to any call for heating or cooling, and no error codes are generated because the board itself has no power.

• Specs: 40VA capacity | 208/230V primary input | 24V secondary output | 50/60Hz | OEM part number HT01BD209 | Also replaces HT01BD207, HT01CN232, and 9076-00
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances for the Carrier PY2PNB024060NC. Undersized or off-spec generic units can cause erratic thermostat behavior, nuisance tripping of the control circuit fuse, or premature board failure.
• Install difficulty: 3/5 — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install), and wire labels or tape. Photograph all low-voltage wiring before disconnecting. Verify secondary output voltage before closing the unit.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Engineered for the Carrier PY2PNB024060NC packaged unit. Verify your existing transformer's VA rating and primary voltage on the unit data plate before ordering. This part also cross-references to Bryant and Payne units sharing the same transformer specification. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — reach out before placing your order.