Service Diagnosis
MDT3F & MDT4F
May 2001
Page 19
PROBLEM
POSSIBLE CAUSE
PROBABLE CORRECTION
No ice is dispensed.
No ice in bin due to:
·
No electrical power
Check/restore power
·
Overuse
Recheck ice needs vs. machine
capacity.
·
Water supply turned off
Check water filter/hand valve/float
valve
·
Bin controls dirty
Check & clean bin control (electric
eyes)
·
Water sensor dirty
Check & clean water sensor
·
Control system malfunction
Check control system
·
Auger drive motor open
Check auger drive motor
·
Centrifugal switch open
Check centrifugal switch
·
Auger does not turn
Check coupling & gear reducer
·
No refrigeration
Check refrigeration system
Ice in bin, but will not dispense:
Drive motor does not turn
·
Vend system does not work
Check/replace vend system
Check that cleaning switch has
been released.
·
Dispense motor open
Check/replace dispense motor
·
Dispense output shaft broken
Check/replace output shaft
Ice in bin, motor turns vane.
Ice jammed up
·
Users held cup against
dispense spout and jammed
unit.
Advise owner/manager to instruct
users.
·
Bin bottom slot not over spout
Check bin bottom position
·
Ice will not slide down bin wall,
bin out of round.
Check bin interior wall for rough
texture or out of round.
·
Wet ice in the bin from high
water level or high suction
pressure
Check water level, check suction
and discharge pressures
