MotorVac COOLANTCLEAN III - Manual (Page 9)

Fluid Level Switch:
♦ Will activate the unit’s Low Fluid Level warning system when the coolant level in the
reservoir has reached it’s minimum fluid level. (zero level) At this time the unit’s
pumps will stop, the amber panel mounted “Low Fluid Level” indicator light
illuminates, the audible low-level alarm will sound & the unit will automatically revert
to a flow through or “bypass” mode.
NOTE: Moving the power switch to the OFF position (CENTER) will disable the
unit’s Low Level alarm (but will not disable the Amber, “Low Fluid Level” indicator
light).
The “Top-Off” feature will be operational anytime the unit is connected to power.