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Problem Possible Cause Remedy
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No water dispensed. a) OS Sensor . Dirty sensor. . Clean.
.
Defective. . See chart 5c below.
b) Dispense Mode Switch . Wrong setting. . Move to desired setting.
.
Bad contacts. .Check for continuity and
replace.
3. Loose connection. 3. Tighten.
c) Control Board . Loose connection. . Tighten.
.
Defective. .See "II.D.4. Control
Board Check Procedure"
and chart 5c below.
5a. Ice Dispensing "Continuous" Mode
Component Control Board Sensor Control Board /Other Sensor On Off
Solenoid K Pin 6 LBU - To Neutral/GND - 0VAC 0VAC
Sensor K5 Pin 4 W/0 R To
K5 Pin 5 Y WH 5VDC 0VDC
K5 Pin 6 W/BR BK 5VDC 5VDC
5b. Ice Dispensing "Portion" Mode
Component Control Board Sensor Control Board /Other Sensor On Off
Solenoid K Pin 6 LBU - To Neutral/GND - 0VAC 0VAC
Sensor K5 Pin W/R R To
K5 Pin W/BU
WH 5VDC 0VDC
K5 Pin 3 W/BK BK 5VDC 5VDC
5c. Water Dispensing
Component Control Board Control Board /Other On Off
Solenoid K Pin 8 DBU To K4 Pin (LBU) 4VAC 0VAC
Sensor K5 Pin 7 R To
K5 Pin 8 WH 5VDC 0VDC
K5 Pin 9 BK 5VDC 5VDC