OEM Carrier Transformer 40VA 120V/24V for Model HC1BNX060000AAAA

This OEM control circuit transformer (Carrier part #HT01AW229) is the factory-specified replacement for the Carrier HC1BNX060000AAAA packaged unit. The transformer steps down line voltage from 120V to the 24V AC signal that powers your thermostat, control board, contactor coil, and all low-voltage switching logic. When it fails, the entire control circuit goes dark — your thermostat goes blank, the system won't respond to any calls for heating or cooling, and nothing turns on. It is often the first component to check when a unit appears completely unresponsive despite confirmed line power.

• Specs: 40VA rating | Primary: 120V | Secondary: 24V AC | Factory-matched OEM part #HT01AW229 | Direct plug-and-play replacement with original mounting footprint
• OEM vs Generic: This OEM transformer is wound to Carrier's exact VA and voltage tolerances. Undersized or off-brand transformers can droop under load, causing nuisance lockouts, board resets, and premature contactor coil failure — OEM spec eliminates that risk.
• Install difficulty: 2/5 — Disconnect power at the disconnect and breaker before starting. Tools needed: flat-head and Phillips screwdrivers, wire stripper, multimeter to confirm 0V before touching secondary terminals. Label all low-voltage wires prior to removal. Total job typically under 30 minutes.
• Warranty: 1-year OEM factory warranty against defects. In stock and ships same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier HC1BNX060000AAAA packaged unit. Always confirm primary voltage and VA rating on your unit's data plate before ordering. If you're unsure of fitment, our HVAC parts specialists verify compatibility before your order ships — no guesswork required.