Motor - Lamb 2-Stage, 5.7", 24V AVALIR and a failing left-hand block

and a failing left-hand block announces itself with grinding

This genuine OEM replacement complete handle assembly includes the grip

Tip: check the brushroll and belt while the housing is open

Includes: filter bag spring 8140ER

a worn unit is the likely cause

Motor - Lamb 2-Stage, 5.7", 24V AVALIR and a failing left-hand blockThis Ametek Lamb motor (116155 00) is a two stage, 5. 7 inch, 24 volt unit that delivers reliable suction for vacuum and central vacuum systems. It serves as a direct drop in replacement to restore full cleaning power and is listed compatible with Lamb 116155. Loss of suction, unusual noise, a burning smell, or a no start condition all indicate the motor needs replacing. This unit brings the system back to full pull. Confirming the 24 volt rating and