Milwaukee M18 FUEL Vacuum Pump

3 fault codes documented

Low Battery LED lights and buzzer sounds — Battery capacity low, nearing end of runtime

When the battery capacity is low, the pump enters low battery mode. The Low Battery LED will illuminate, and an audible buzzer will sound. The pump will also reduce its speed to extend runtime and maintain the vacuum until the battery is depleted.

Power button LED blinking

Power button LED blinking — Thermal Overload Protection active

If the Power button LED starts blinking, the vacuum pump has activated its thermal overload protection. This means the tool is too hot and will not restart until it has cooled down sufficiently.

Reduced initial operating speed

Reduced initial operating speed — Cold mode active for warm-up

When the pump is used in environments below 20 degrees Celsius, it will automatically reduce its initial operating speed. This 'cold mode' warms up the oil and motor to ensure optimal performance. The pump will return to normal speed on its own.