KitchenAid KUIS155H Technical Education page 61

Problem
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
Probable Cause
Slab will not release during
harvest due to scale build up
Defective or disconnected hot
gas solenoid
Defective hot gas valve
Room temperature over
100°F (38°C)
Seeping water valve
Condenser is hot
Partial refrigerant leak or
restriction (U shaped slab)
Blocked condenser or stalled
fan motor
Tube not attached to outlet
of recirculation pump
Defective recirculating pump
Partially blocked water
distributor
Compressor is not running
Blocked condenser or stalled
fan motor
Unit is in the startup mode
Room temperature below
55°F (13°C)
Seeping water valve
Condenser is hot
Slow or defective drain or
drain pump causing water to
back up into the bin
6-3
Test Procedure-Action
Clean the evaporator plate
(see procedure on page 8-1)
Test and repair or replace
Test and repair or replace
Customer instruction
Replace water valve
Check for leak/restriction and
repair or replace defective
component
Clean condenser, repair
or replace motor
Reattach tube
Repair or replace the pump motor
assembly
Clean distributor and evaporator
Test compressor, relay and
overload
Clean condenser, repair or
replace motor
Wait 5 minutes and recheck
Bin thermistor has unit shut off
Customer Instruction
Replace water valve
Repair or replace drain
or drain pump