[E] Checking The Controller Board - Hoshizaki KM-1300SWH-E Service Manual

5) Freeze Timer
Adjust to proper specification, or the unit may not operate correctly.
Two new dip switches numbered 9 and 10 have been added to the improved "E" board
to better prevent possible freeze ups. These settings come factory set to the default
setting of 60 min. (OFF, OFF). Check the adjustment chart published in the Tech Specs
for proper settings. If the old board does not have these two dip switches, (only 8 in-
stead of 10), leave setting as OFF, OFF.
Dip Switch
No. 9
OFF
ON
OFF
ON
6) Bin Control
When the ambient temperature is below 45°F, the Bin Control Thermostat
operates to stop the icemaker even if the Ice Storage Bin is empty. When
the Thermostat is set in the prohibited range, the icemaker operates
continuously even if the Ice Storage Bin is filled with ice. Setting in the
prohibited range might cause severe damage to the icemaker resulting in
failure.
No adjustment is required under normal use, as the Bin Control is factory-adjusted.
Adjust it, if necessary, so that the icemaker stops automatically within 10 seconds after
ice contacts the Bin Control Thermostat Bulb.

[e] CHECKING THE CONTROLLER BOARD

1) Visually check the sequence with the icemaker operating.
2) Visually check the Controller Board by using the following procedures.
(i) Adjust the Defrost Timer to minimum position.
Disconnect the Thermistor from the Controller Board.
Connect a 1.5 kΩ - 3.5 kΩ resistor to the Connector K3 (pins #1 and #2), and energize
the unit.
CAUTION
SETTING
Dip Switch
No. 10
OFF
OFF
ON
ON
CAUTION
TIME
60 min.
70 min.
50 min.
60 min.
17