MARVEL Scientific MPRO30iMT - Manuel (Page 7)

NOTE
DRAIN PUMP
7
Troubleshooting the Drain Pump
If the drain pump reservoir (not the ice machine bin) reaches
overfill condition, the power to the ice machine will be shut off.
If the ice machine is not working, check the following:
• Make sure there is power at the receptacle.
• Make sure the ice machine is turned on.
• Make sure the ice bin is not full.
Then check the drain pump:
The pump does not run:
• Make sure the pump is plugged in and there is power to the
receptacle.
• Check the inlet to the drain pump for debris and clean as
needed. Remove clamps and inlet tube from drain pump to
check for and remove debris.
• Make certain the vent line is free of kinks/sharp bends or
restrictions.
• Make certain there is enough water to activate the drain
pump. It will take at least one (1) quart (.95 liters)of water
to activate the drain pump.
The pump runs, but no water is pumped out:
• Check that the vent is clear and free of restrictions.
• Check the discharge line to make certain there are no re-
strictions.
• Make sure that the discharge tubing has not exceeded the
maximum lift of eight (8) feet (2.44 meters) and the horizon-
tal run is not greater than twenty (20) feet (6.1 meters).
The pump runs and then quickly turns off repeatedly:
• Check to make certain the drain pump is level.
• Check that the vent is clear and free of restrictions.
The ice machine is running but not producing ice:
• Check to make sure water is not backing up in the ice bin.