OEM Carrier 60VA Control Transformer HT01AW229 for Model PH10JA01800GADAA

This is the factory OEM replacement control transformer for the Carrier PH10JA01800GADAA packaged HVAC unit. The transformer steps line voltage (115/208/230V primary) down to a safe 24V AC secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the result is total control circuit loss: the thermostat goes dark, no contactors pull in, and the unit appears completely unresponsive despite having line power. Replacing the transformer is often the fastest fix for a system that is "dead" at the stat.

• Specs: 60VA rating | Primary: 115/208/230V AC | Secondary: 24V AC | Foot-mounted design | OEM Part# HT01AW229 (also supersedes HT01AW229A)
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA and voltage tolerances, preventing nuisance trips on boards with tight inrush requirements. Generic units rated loosely at 60VA can deliver as little as 50VA under load, causing intermittent lockouts.
• Install difficulty: 2/5 — Shut off all power and verify zero voltage before touching any wiring. Tools needed: multimeter (verify 0V before and 24V after install), flathead and Phillips screwdrivers, needle-nose pliers. Label all wires before disconnecting. Mount feet securely to prevent vibration hum.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered by 3:00 PM local time.

Compatibility: Designed for Carrier model PH10JA01800GADAA packaged HVAC units. Always confirm primary voltage (115V, 208V, or 230V) on your unit's data plate before ordering — using the wrong primary tap will immediately damage the transformer or the control board. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy.