OEM Carrier Control Transformer 60VA 115/208/230V–24V for Model PH11JA018000AAAA

This OEM control transformer is the factory-specified replacement for the Carrier PH11JA018000AAAA packaged heat pump unit. The transformer steps down high-voltage primary power (115, 208, or 230VAC) to the 24VAC secondary signal that energizes your thermostat, contactor coils, reversing valve solenoids, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dark — you'll see a completely unresponsive thermostat, no contactor pull-in, and no system operation even though line voltage is present at the unit.

• Specs: 60VA power rating | 115/208/230VAC primary | 24VAC secondary | 50/60 Hz | Foot-mount configuration | OEM Part Number: HT01AW229
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part built to exact VA rating and insulation class specs. Undersized or off-brand transformers can overheat under full control-circuit load, causing nuisance shutdowns and premature failure of downstream components.
• Install difficulty: 3/5 — Disconnect all power before servicing. Tools needed: multimeter, flathead and Phillips screwdrivers, wire stripper, and needle-nose pliers. Label and photograph all low-voltage wiring before disconnecting. Verify primary voltage tap selection matches your supply voltage (115V, 208V, or 230V) before energizing.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PH11JA018000AAAA packaged heat pump systems. The HT01AW229 is also cross-referenced under part numbers HT01AW229A, CIN-TRAN, and 30-BV2006. Always verify your unit's data plate voltage and confirm the transformer VA rating before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your unit back online fast.