Lights; Pump - Quick MILL QM67 Owner's Manual

Normal Operation, Continued

Lights

• On the front of the machine there are 4 indicator lights. The green indicator light to the
left of the coffee boiler power switch will illuminate whenever the coffee boiler is
turned on.
• The green indicator light to the right of the steam boiler power switch will illuminate
whenever the steam boiler is turned on. The coffee boiler power switch must be
turned on for the steam boiler to operate.
• The red coffee boiler heating indicator light located under the coffee boiler power
switch will illuminate whenever the coffee boiler is heating.
• The red steam boiler heating indicator light located under the steam boiler power
switch will illuminate whenever the steam boiler is heating. The coffee boiler must be
up to temperature before the steam boiler is able to heat.
• It is normal for the red heating lights to flash rapidly back and forth to maintain the
proper temperature in both boilers.

Pump

• The machine is equipped with a 52W vibratory pump that is thermally protected.
Vibratory pumps can be loud by nature and their tone may change during the course
of a shot which is normal.
• Periodically the pump will come on by itself to maintain the proper water level in the
boiler. Sometimes the pump will come on when you turn on the machine and
sometimes it may not depending on the water level in the boiler which is normal.
• The pump (brew) pressure is regulated by the expansion valve. To learn how to set
the pump pressure please refer to the maintenance section of the owner's manual.
QM67 Dual Boiler Espresso Machine
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