Friedrich Air Conditioning 68000030 Main PCB 326058-757 Standby Heat Retention: Eliminates the

Standby Heat Retention: Eliminates the "chimney effect" by closing the flue when the burner is off

fabric-reinforced diaphragm

maintaining proper gap alignment for clean combustion cycles

Proper integration of this Field Controls draft control reduces soot accumulation and stabilizes the over-fire draft

Durable Construction: Features self-lubricating bushings and an extruded aluminum frame for silent operation and long-term reliability in commercial or residential ducts

Friedrich Air Conditioning 68000030 Main PCB 326058-757 Standby Heat Retention: Eliminates theThe Friedrich 68000030 Main PCB serves as the primary control center for specific commercial and residential window AC units, including select Kuhl series air conditioners. As a critical OEM replacement part, this printed circuit board manages essential system communication, processing thermostat inputs to modulate fan speeds and compressor cycling. Technicians utilize this Friedrich control board to resolve communication errors or power delivery