OEM Carrier Transformer 40VA 120V/24V for Model CH14NA03600GAAAA

This OEM replacement transformer (part number HT01AW229) is the factory-specified control circuit transformer for the Carrier CH14NA03600GAAAA split-system condenser. The transformer steps down line voltage (120V) to the 24V signal voltage required to power the thermostat, contactor coil, and all low-voltage control circuits. When this component fails, the entire control circuit goes dark — your thermostat goes blank, the contactor won't energize, and the system won't respond to any call for cooling. It's often the first component to check when nothing works at all.

• Specs: 40VA capacity | Primary: 120V | Secondary: 24V | Factory-matched OEM part number HT01AW229 | Compatible with standard 24V control circuits
• OEM vs Generic: OEM transformers are wound to exact VA and voltage tolerances required by Carrier engineering specs. Undersized or off-tolerance generic transformers can overheat, blow fuses, or damage control boards — making OEM the only safe choice for this application.
• Install difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Verify 24V output with a multimeter before reassembling. Label all wires prior to disconnecting.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and verified for the Carrier CH14NA03600GAAAA 3-ton single-stage split-system condenser. Always confirm the transformer's VA rating and primary/secondary voltage against your unit's data plate before ordering. Our fitment team is available to verify compatibility before you buy — don't guess on control circuit components.