18
630460050SER
LOW WATER SAFTEY
SWITCH OPEN
ICEMAKER RUNS BUT
DOES NOT MAKE ICE
NO POWER
STORAGE CONTAINER
BIN SWITCH OPEN
ICEMAKER OPERATING BUT
– Soft ice
– Poor dispensing
GEARMOTOR OVERLOAD
TRIPPED
–Check electrical wiring in
control box for loose connections
–Check for failed service switch
or relay
–Check power to machine
Condenser fan runiing but
compressor not running
–Check line voltage
–Check compressor winding
& components
Evaporator water tube may
have an air bubble.
Clear air bubble from tube
–Check that wateris turned on
–Check for restriction in water line
–Check incoming water pressure
(minimum 10 lbs.)
–Check water saftey switch
–Check bin switch
–Check to see if ice
control plate moves
freely
– Check bin switch
– Check to see if ice control
plate moves freely
Clean all
related drain
lines
Yes
No
Refer to ”Guide
to Good Ice” in
Service manual
Check water level control
and evaporator water tube
for lime build up restriction
No
Yes
CAUTION
Clear ice from
evaporator and
auger before
resetting
overload
CLEAN
See
instructions
High suction pressure (30
lbs. or above)
Low suction presure
(20 lbs. or below)
TROUBLESHOOTING CHART – ICEMAKER NOT OPERATING
Head
pressure
high
TXV not
operating
properly
Suction line
not
insulated
TXV bulb lost
charge
Replace valve
evacuate and
recharge
Bulb
uninsulated
Clean and
insulate
Bulb
loose
Clean
and
tighten
Valve stuck
open
Replace
valve
Condenser
dirty or
restricted
Condenser
fan not
running
Too much
refrigerant in
system
Non–condensibles
in system
– Check electrical circuit
to fan motor
– Check fan motor
Evacuate and
recharge system.
Clean condenser
Reset
overload
Icemaker runs
Resets but
motor does not
run
Will not
reset
Overload
hot try
again
Check
gearmotor
circuit
Short run trips
again in 2 minutes.
Check gearmotor
circuit
Will not
reset
replace
overload
IMPORTANT
Icemaker runs when reset
but problem has not been
found.
Continue checking for
overload as follows to guard
against future problems
OVERLOAD GUIDE
ELECTRICAL:
– High or low voltage Weak power lines can cause overloads on icemaker restarts
– High running current. Check motor circuits and start relay – Auger delay failed
ICEMAKER:
– Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing
– Ice maker not turning off. Failed ice level control
– Over compession. Low water inlet temperature. Restriction in water line from reservior
REFRIGERANT:
– Contaminated charge or bad compressor.
– Low charge or gas leak
– Low suction pressure. Improper expansion valve sensing bulb location or insulation
and/or defective expansion valve
Restricted
liquid line
Plugged
liquid line
dryer
Plugged or
faulty TXV
Icemaker
froze up
Low on
refrigerant
Check for
leaks
Replace
drier.
Evacuate
and
recharge
system
Check for
kinks or
damage to
liquid line
Replace
valve
evacuate
and
recharge
system
Check if
auger is
turning
Check drive on
gearmotor
Check gears in
gearbox
Check if extruding
head is down in
evaporator tube
No
