OEM Carrier 60VA Control Transformer HT01AW229 for Model PH10JA018000AHAA

This is the factory OEM replacement control transformer for the Carrier PH10JA018000AHAA packaged unit, sourced direct from Carrier's Factory Authorized Parts program. The control transformer steps down the high-voltage supply (115, 208, or 230V primary) to the 24V AC signal that powers the entire control circuit — including the thermostat, contactor coil, safety switches, and control board. When this transformer fails, the result is total loss of control voltage: nothing responds to the thermostat, no contactors energize, and the unit appears completely dead even though line voltage is present at the disconnect.

• Specs: 60 VA rating | Primary: 115/208/230V AC | Secondary: 24V AC | Foot-mounted configuration | OEM Part # HT01AW229 (also fits suffix HT01AW229A)
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part — not a third-party substitute. OEM transformers are wound to exact VA and voltage tolerances, ensuring stable 24V output under full control-circuit load. Under-rated or off-tolerance generics can cause nuisance lockouts, board damage, or premature contactor coil failure.
• Install difficulty: 2/5 — Disconnect all power before beginning. Tools needed: multimeter (verify 0V at terminals before touching wiring), flathead and Phillips screwdrivers, wire nuts or spade terminals. Always confirm line-voltage selection tap matches your supply voltage (115V, 208V, or 230V) before energizing. Incorrect tap selection will damage the transformer immediately.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for Carrier model PH10JA018000AHAA. Verify your existing transformer's VA rating and primary voltage tap configuration against your unit's wiring diagram before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before every order — contact us today and get this part on its way to you.