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This is the genuine OEM Carrier control transformer (part# P201-35150) designed as the factory-specified replacement for the Carrier UPFLOW180FAUHAC14A upflow air handler. The transformer steps down your home's line voltage — 120, 208, or 240 VAC — to a safe 12/24 VAC output that powers the system's control board, thermostat circuit, and all low-voltage control components. At 50VA, it provides ample capacity for multi-stage systems and zone controls. When this transformer fails, the entire control circuit goes dead: the thermostat loses communication, the blower won't respond, and the system will not heat or cool regardless of thermostat input.
Compatibility: Direct OEM replacement for Carrier model UPFLOW180FAUHAC14A upflow air handler. Confirm your existing transformer's VA rating (50VA) and primary voltage markings on the data plate before ordering to ensure proper fit. Have questions about fitment? Our HVAC parts specialists are standing by to verify compatibility before you order — same-day shipping available on all in-stock orders.