Service Diagnosis
Symptom
Probable Cause
Possible Correction
Does not dispense
No power to dispenser
Check for power, reconnect if off
Ice chute not all the way up.
Push ice chute up.
No ice in hopper
Check ice machine, it may be off or
the dispenser’s storage capacity
may have been exceeded.
Dispenser On-Off switch is OFF.
Move switch to ON
Push button switch does not work
Check - replace switch if it will not
close
Coin switch (coin vending units)
does not work
Check - replace switch if it will not
close
Coin units: Cam switch #2 open
Check position of switch on cam,
check switch contacts.
Card switch (code card units) does
not work
Check - replace switch if it will not
close
Transformer failed
Check - replace if open
Safety switch is open
Check - replace switch if it will not
close
Relay has failed
Check - replace relay if coil or
points are open
Motor of gear reducer is open or
stuck
Check motor, replace if open
Drive shaft broken
Check drive shaft, replace if broken
Gear reducer stripped internally
Check if motor turns but output
shaft does not. Service or replace
gear reducer
50 Hz models - main transformer
has failed
Check, replace transformer if open
Does not STOP dispensing
Vend or cam switch stuck closed
Check cam or vend switch
Ice fills chute by itself
Result of ice agitation
This is normal
Rotor not timed properly with cam
switch
Adjust cam switch
Vend switch stuck
Check vend switch
HD356
February 1999
Page 11
