Service Diagnosis - Scotsman MDT3F User Manual

MDT3F & MDT4F User Manual

Service Diagnosis

PROBLEM
No ice is dispensed.
POSSIBLE CAUSE
No ice in bin due to:
·
No electrical power
·
Overuse
·
Water supply turned off
·
Bin controls dirty
·
Water sensor dirty
·
Control system malfunction
·
Auger drive motor open
·
Centrifugal switch open
·
Auger does not turn
·
No refrigeration
Ice in bin, but will not dispense:
Drive motor does not turn
·
Vend system does not work
·
Dispense motor open
·
Dispense output shaft broken
Ice in bin, motor turns vane.
Ice jammed up
·
Users held cup against
dispense spout and jammed
unit.
·
Bin bottom slot not over spout
·
Ice will not slide down bin wall,
bin out of round.
·
Wet ice in the bin from high
water level or high suction
pressure
November 2008
Page 13
PROBABLE CORRECTION
Check/restore power
Recheck ice needs vs. machine
capacity.
Check water filter/hand valve/float
valve
Check & clean bin control (electric
eyes)
Check & clean water sensor
Check control system
Check auger drive motor
Check centrifugal switch
Check coupling & gear reducer
Check refrigeration system
Check/replace vend system
Check that cleaning switch has
been released.
Check/replace dispense motor
Check/replace output shaft
Advise owner/manager to instruct
users.
Check bin bottom position
Check bin interior wall for rough
texture or out of round.
Check water level, check suction
and discharge pressures