Clean Burn Fan Limit Switch (8"): 33081

The CB 1400/1800/2800 or older model Clean Burn waste oil furnaces CB 90 AA, CB 90 AH, CB 90 BH, CB 86 AH and CB 86 BH require a FAN LIMIT SWITCH (part #33081) to regulate fan operation. This switch can be set to either automatic or manual mode and controls when the fan turns on and off based on the temperature of the cabinet/heat exchanger. Experts recommend using the automatic setting for optimal efficiency.