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6-3
Problem Probable Cause Test Procedure-Action
Slab will not release
during harvest due to
scale build up
Clean the evaporator
plate(see procedure on
page 8-1)
Defective or
disconnected hot gas
Testand repair or replace
Defective hot gas
valve
Testand repair or replace
Roomtemperature
over 100
°
F(38
°
C)
Customer instruction
Seeping water valve
Condenser is hot
Replace water valve
P artial refrigerant leak
or restriction (U
shaped slab)
C heck for lea k/res triction
and repair or replace
defective component
Blocked condenser or
stalled fan motor
Clean condenser, repair
or replace motor
T ube not atta ched to
outlet of recirculation
pump
R eatta ch tube
Defective recirculating
pump
R epair or replace the
pump motor assembly
P artially blocked water
distributor
Clean distributor and
evaporator
Compressor is not
running
Testcompressor, relay
and overload
Blocked condenser or
stalled fan motor
Clean condenser, repair
or replace motor
Unit is in the startup
mode
W ait 5 minutes and
recheck
Roomtemperature
below 55
°
F(13
°
C)
Bin thermistor has unit
shut o Customer
Instruction
Seeping water valve
Condenser is hot
Replace water valve
S low or defective drain
or drain pump causing
water to back up into
the bin
R epair or replace drain
or drain pump
Willnotmake ice
Water reservoir is
empty. Evaporator is
cold with 3/4" thick or
larger ice slab
Willnotmake ice
Water reservoir is full
Evaporator is cold
with
thin/partial/irregular
or no ice slab
Willnotmake ice
Water reservoir is full
Evaporator is warm
P oor ice production