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 solenoid Test and repair or replace
Defective hot gas valve Test and repair or replace
Room temperature over
100°F (38°C) Customer instruction
Seeping water valve
Condenser is hot Replace water valve
Partial refrigerant leak or
restriction (U shaped slab)
Check for leak/restriction and
repair or replace defective
component
Blocked condenser or stalled
fan motor
Clean condenser, repair
or replace motor
Tube not attached to outlet
of recirculation pump Reattach tube
Defective recirculating pump Repair or replace the pump motor
assembly
Partially blocked water
distributor Clean distributor and evaporator
Compressor is not running Test compressor, relay and
overload
Blocked condenser or stalled
fan motor
Clean condenser, repair or
replace motor
Unit is in the startup mode Wait 5 minutes and recheck
Room temperature below
55°F (13°C)
Bin thermistor has unit shut off
Customer Instruction
Seeping water valve
Condenser is hot Replace water valve
Slow or defective drain or
drain pump causing water to
back up into the bin
Repair or replace drain
or drain pump
Will not make ice
Water reservoir is empty.
Evaporator is cold with
3/4" thick or larger ice slab
Will not make ice
Water reservoir is full
Evaporator is cold with
thin/partial/irregular
or no ice slab
Will not make ice
Water reservoir is full
Evaporator is warm
Poor ice production