Manitowoc QM30A Service Manual

Service Section 6
6-4
BIN THERMOSTAT
Function
The bin thermostat stops the ice machine when the
bin is full.
The level of ice in the ice storage bin controls the
ice machine shut-off. When the bin is full, ice cubes
contact the bin thermostat bulb holder, which cools
down and opens the bin thermostat to stop the ice
machine. The ice machine remains off until enough
ice has been removed from the bin. This causes the
thermostat bulb holder to warm and closes the bin
thermostat, restarting the ice machine.
Specifications
Control Setting
Bin Thermostat
Cut in: 4.5°C (34°F)
Cut out: 1.0°C (33.8°F)
Check Procedure
WARNING
High (line) voltage is applied to the control board
(terminals #8 and #2) at all times. Removing the
control board fuse or moving the toggle switch to
OFF will not remove the power supplied to the
control board.
WARNING
Disconnect electrical power to the entire ice
machine before proceeding.
1. Remove the back panel to access the bin
thermostat.
2. Disconnect both wires #12 and #1 from the bin
thermostat and check the resistance across the
bin thermostat terminals.
No Ice on Bulb Ice on Bulb Result
Closed (O) Open (OL)
Thermostat
good
Open (OL) Closed (O)
Replace
thermostat
Note: After covering/uncovering the bulb holder
with ice, wait at least three minutes to allow
the thermostat to react. (Open/Close)
DECREASE
LEVEL OF
ICE IN BIN
INCREASE
LEVEL OF
ICE IN BIN
4"
(10.2 cm)
1.5"
(3
.
8
c
m
)

Manitowoc QM30A Specifications

General

Brand	Manitowoc
Model	QM30A
Category	Ice Maker
Language	English