OEM Carrier Control Transformer 60VA 115/208/230V for Model PH12NA018000ABAA

This is the genuine OEM factory-authorized control transformer for the Carrier PH12NA018000ABAA packaged unit. The transformer steps down line voltage — 115V, 208V, or 230V primary — to a stable 24V secondary, powering the entire low-voltage control circuit: thermostat, contactor coils, gas valve, and control board. When this transformer fails, the result is total system unresponsiveness — no thermostat communication, no call for heat or cool, and no contactor pull-in. Replace it with the exact OEM-specified unit to restore reliable control voltage to every downstream component.

• Specs: 60 VA rating | Primary: 115 / 208 / 230 VAC | Secondary: 24 VAC | Foot-mount configuration | OEM Part # HT01AW229 (also referenced as HT01AW229A)
• OEM vs Generic: OEM transformers are wound and tested to Carrier's exact VA and voltage tolerances. Undersized or off-tolerance aftermarket transformers can sag under load, causing nuisance lockouts and premature control board failure — a far costlier repair.
• Install difficulty: 2/5 — Shut off all power at the disconnect before beginning. Tools needed: multimeter, flathead and Phillips screwdrivers, wire stripper, needle-nose pliers. Verify primary voltage at your unit's data plate matches transformer input tap before wiring. Photograph all wiring connections before removal.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed and factory-specified for Carrier model PH12NA018000ABAA. Cross-references include part numbers HT01AW229A, CIN-TRAN, and 30-BV2006. Always confirm primary voltage and VA requirement against your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — order with confidence.