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This is the OEM factory-specified control transformer for the Carrier CH13NA06000GACBA split-system air conditioner. The transformer steps down 120V line voltage to the 24V AC signal that powers the control board, thermostat circuit, and contactor coil. When this component fails, the entire low-voltage control circuit goes dead — your thermostat display may go blank, the system will not respond to calls for cooling, and the contactor will not energize. If you've already confirmed 120V at the primary side but measure zero or low voltage at the secondary, this transformer is the likely culprit.
Compatibility: Designed for the Carrier CH13NA06000GACBA split-system condenser. Always verify the OEM part number HT01AW229 against your unit's data plate or wiring diagram before ordering. If you need help confirming fitment, our parts specialists are available to verify compatibility before you purchase — same-day shipping available on all in-stock orders.