OEM Carrier Control Transformer 40VA 230V/115V for Model 09DE044C800

This OEM Carrier control transformer (part number HT01BC208) is the factory-specified replacement for the Carrier 09DE044C800. The transformer steps down line voltage to power the low-voltage control circuit that operates your thermostat, relays, and safety controls. When this transformer fails, the entire control circuit goes dead — your system will not respond to any thermostat input, and no heating or cooling operation will occur whatsoever.

• Specs: 40VA capacity | 230V primary input | 115V secondary output | 50/60 Hz | OEM part number HT01BC208 | Cross-references: 320659-301, 2-05757-1
• OEM vs Generic: This is a genuine Totaline/Carrier OEM transformer built to exact factory VA and voltage specifications. Aftermarket units often fall short on VA rating, causing nuisance tripping of internal breakers and premature failure under normal HVAC load cycles.
• Install difficulty: 2/5 — Shut off all power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph all wiring connections before removal. Verify primary and secondary voltage wires are correctly terminated before restoring power.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed for Carrier model 09DE044C800. Also fits select Bryant and Payne units sharing the same transformer spec. Always confirm primary voltage, secondary voltage, and VA rating against your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you buy for total peace of mind.