OEM Carrier Control Transformer 40VA 208/240V — HT01BD209 for Model PY2PNB060130AA

This OEM Carrier control transformer (part# HT01BD209) is the factory-specified replacement for the Carrier PY2PNB060130AA packaged unit. The transformer steps down the 208/240V line voltage to a safe 24V signal that powers the entire control circuit — including the thermostat, contactor coils, and safety switches. When this component fails, the system goes completely unresponsive: no heating, no cooling, no fan — nothing on the thermostat. A failed transformer is one of the most common causes of a completely dead HVAC system and is often overlooked before replacing more expensive components.

• Specs: Input 208/240V | Output 24V | 40VA power rating | 50/60Hz | OEM part# HT01BD209 | Factory-matched to Carrier PY2PNB060130AA
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances. Undersized or off-spec generic transformers can overheat, trip thermal cutoffs prematurely, and damage low-voltage boards and contactor coils over time.
• Install difficulty: 2/5 — Always disconnect power at the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter to verify 24V output after installation. Photograph existing wiring before disconnecting leads.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model PY2PNB060130AA. Verify input voltage on your unit's data plate (208V or 240V single-phase) before ordering. Not sure if this is the right transformer for your system? Our HVAC parts specialists verify fitment before you order — contact us today and we'll ship it fast.