OEM Carrier Transformer 40VA 120V to 24V for Model CH13NA06000GAAAA

This is the factory OEM replacement transformer (part number HT01AW229) for the Carrier CH13NA06000GAAAA split-system air conditioner. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, control board, and all low-voltage switching circuits. When this component fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any commands, and no heating or cooling operation is possible.

• Specs: 40VA rating | Primary: 120V AC | Secondary: 24V AC | Direct OEM replacement | OEM Part Number: HT01AW229
• OEM vs Generic: This factory OEM transformer is wound to exact VA and voltage specifications for the CH13NA06000GAAAA. Generic transformers may exceed impedance tolerances, causing control board brownouts or nuisance trips on the secondary circuit.
• Install difficulty: 2/5 — Disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label or photograph all low-voltage wiring before disconnecting terminals.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our warehouse.

Compatibility: Designed specifically for the Carrier CH13NA06000GAAAA condenser/air handler system. Verify your unit's control circuit voltage and VA rating on the data plate before ordering. If your thermostat is completely unresponsive and your breaker is intact, a failed transformer is the most common cause — this is your fix. Have a fitment question? Our HVAC parts specialists verify compatibility before you order.