EdgeStar IB450SSP, IB650SS Service Manual
EdgeStar, 8606 Wall St, Suite 1800, Austin, TX 78754
support.edgestar.com • service@edgestar.com • edgestar.com
*Warranty service should be performed by an authorized service representative only.
SERVICE MANUAL
EdgeStar 45 Lb. Undercounter Clear Ice Maker
with Drain Pump
MODEL:
IB450SSP
Document Type: Service Manual
Version: V1.0 02062018
CAUTION: READ ALL SAFETY PRECAUTIONS IN
THIS MANUAL BEFORE SERVICING THE UNIT
1
CONTENTS
CONTENTS................................................................................................................................................... 1
SAFETY PRECAUTIONS ............................................................................................................................. 1
ELECTRICAL SAFETY ............................................................................................................................. 2
GENERAL SAFETY .................................................................................................................................. 3
IB450SSP INTRODUCTION ......................................................................................................................... 4
COOLING SYSTEM OVERVIEW ............................................................................................................. 4
COOLING SYSTEM PARTS LIST ............................................................................................................ 5
WATER SYSTEM ..................................................................................................................................... 6
ELECTRICAL SYSTEM ............................................................................................................................ 7
IB450SSP CONTROLS / CONTROL BOX ................................................................................................... 8
LEDS AND BUTTONS .............................................................................................................................. 8
ICE CUBE SIZE ADJUSTMENT GUIDE: ................................................................................................. 8
EXPLODED VIEW DIAGRAM..................................................................................................................... 10
PARTS LIST ................................................................................................................................................ 11
TROUBLESHOOTING ................................................................................................................................ 12
ADVANCED TROUBLESHOOTING GUIDE .............................................................................................. 13
REPLACING WATER SYSTEM COMPONENTS....................................................................................... 18
REPLACING THE WATER PUMP ......................................................................................................... 18
REPLACING THE WATER INLET VALVE ............................................................................................. 18
REPLACING COOLING SYSTEM COMPONENTS ................................................................................... 19
REPLACING THE COMPRESSOR START RELAY AND OVERLOAD PROTECTOR. ....................... 19
REPLACING THE FAN MOTOR. ........................................................................................................... 19
REPLACING THE HOT GAS VALVE AND FILTER DRYER. ................................................................ 19
SAFETY PRECAUTIONS
WARNING: This manual and the information contained herein is intended for use by certified
technicians. The manufacturer or seller is not responsible for the interpretation or misuse of the
information provided, nor does it assume any liability in connection with its use.
The safeguards and warnings indicated in this manual do not cover all possible conditions which
may occur. Common sense, caution, and care must be exercised.
To prevent electric shock, always unplug an appliance from the power supply before attempting
any service.
Disconnect the power cord by grasping the plug, not the cord.
Do not bypass, cut, or remove the grounding plug.
Prevent water from spilling onto electric elements or the machine parts.
Always refer to the rating label on the appliance for rated current and voltage.
Always check line voltage and amperage.
Always use exact replacement parts.
Any attempt to repair a major appliance may result in personal injury and property damage.
2
Electrical Safety
Do not exceed the power outlet ratings.
It is recommended that the unit be connected to its own circuit.
A standard electrical supply (120V, 60Hz), that is properly grounded in accordance with the National
Electrical Code and all state and local codes and ordinances is required.
Do not use outlets that can be turned off by a switch or pull chain.
Always turn the unit off and unplug it from the outlet when cleaning.
Unplug the unit if it is not going to be used for an extended period of time.
Do not operate the unit with a power plug missing the ground plug, a damaged cord, or a loose socket.
Be sure the appliance is properly grounded.
Do not bypass, cut, or remove the grounding plug.
If the power cord is damaged, it must be replaced by the manufacturer or a qualified technician.
Do not use extension cords or power strips with this unit. You may need to contact an electrician if it is
necessary to use a longer cord or if you do not have a properly grounded outlet. Do not modify the
power cord’s length or share the outlet with other appliances.
Do not start or stop the unit by switching the electrical circuit’s power on and off.
Immediately unplug the unit if it makes strange sounds, emits an odor or smoke and contact customer
service.
Do not remove any part of the casing unless instructed by an authorized technician.
Before the appliance is removed from service or discarded, remove the door and cut off the power
cord.
3
General Safety
Always unplug an appliance from the power supply before attempting any service. Disconnect the
power cord by grasping the plug, not the cord.
Do not allow children or pets to play on or in the appliance.
This machine is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the machine by a person responsible for their safety.
Do not install or store this appliance where it will be exposed to the weather.
Disconnect from the power socket before cleaning or maintenance.
If the plug (power cord) is damaged, it must be replaced by the manufacturer or an authorized service
representative.
This machine shall be repaired only by an authorized service representative. Only genuine
replacement parts should be used.
If connected to a circuit protected by fuses, use time-delay fuses with this appliance.
Do not lean items against the glass door.
Please do not close the door with excessive force. If it is found difficult to close the door, please check
for obstruction.
When you plan to dispose of this unit in the future, please comply with the local waste disposal
regulations. Remove the door so that children and pets will not be trapped in the unit.
4
IB450SSP Introduction
The IB450SSP is comprised of 3 systems: The Cooling System, Water System and
Electrical System.
Note: Please refer to the IB450SSP User Manual for installation and other use and care
guidelines.
Cooling System Overview
5
Cooling System Parts List
ITEM NO.
DESCRIPTION
1
Condenser
2
Multi-connection copper pipe
3
Hot gas solenoid valve
4
Filter Dryer
5
Capillary tube
6
Hot gas tube
7
Suction tube
8
Compressor
9
Fan motor
9.1
Fan motor bracket
9.2
Fan blade
10
Discharge tube
19
Wiring harness
39
Control box
39.1
Temperature sensor for the condenser
39.2
Temperature sensor of the evaporator
46
Evaporator (Ice Mold)
During the ice making stage the hot gas solenoid valve is closed. The hot refrigerant gas is pumped out
of the compressor to the condenser. The hot gas is cooled by fan forced air after passing through the
condenser. The filter dryer helps reduce dirt and moisture in the refrigerant. The evaporator is cooled by
the refrigerant. Ice is formed on the evaporator as water is sprayed onto the evaporator. Low pressure
refrigerant gas goes back to the compressor from the evaporator.
During the ice harvest stage, the solenoid valve is open. The hot refrigerant gas is pumped out of
compressor to evaporator through the hot gas valve. As the hot gas passes through the evaporator it
warms and the ice touching it is slightly thawed and releases from the evaporator. The harvested ice then
proceeds down the slide way into the ice storage bin.
6
Water System
When the water supply hose (No. 38) is connected with the main water supply, water will fill the water bin
(No. 57) through the float valve (No. 32) until water fills the bin enough to make the float valve close.
During ice-making stage, water is pumped from the water bin to the water distribution tube (No. 45.) The
water then flows over the surface of evaporator. Most of water goes back to the water bin. Some water is
frozen onto the evaporator little by little. When water in the bin falls below a certain level the float valve
will open and fill the bin again.
ITEM
NO.
DESCRIPTION
ITEM
NO.
DESCRIPTION
23
Water Pump
38
Water Supply Hose
25
Water Pump Inlet Tube
45
Water Distribution Tube
26
Water Pump Outlet Tube
46
Evaporator
32
Float Valve
48
Ice Slide Way
33
Water Inlet Valve
49
Ice Full Sensor
34
Water Inlet Nut
57
Water Bin
36
Water Inlet Tube
59
Water Bin Drain Tube
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