Ice-O-Matic GEMU090 Series Service Manual Download Page 16

Page 14

GEMU090
Service

GEM090 Gearbox Access & Removal

1.

Shut off water supply

2.

Remove drain plug inside bin compartment

3.

Disconnect power supply or unplug unit

4.

Uninstall unit and pull out as needed for top
and back access.

5.

Remove top panel

6.

Remove back panel

7.

Remove ice chute/bin wall by unscrewing 2
thumb screws and lifting it out

8.

Remove 2 orange wires from water level
sensor (on top of float tank)

9.

Rotate ice sweep counter-clockwise and
remove ice sweep

10.

Lift and remove ice chute

11.

Remove 4 screws securing float reservoir &
set aside

12.

Remove gray water tube from evaporator
inlet

13.

Disconnect power connection to auger motor

14.

Remove 4 bolts securing breaker head to
freezer by using ¼” allen wrench (socket type
- best method)

Hazard of Electrical
Shock.

Disconnect Electrical
Power Before
Servicing.

Chute

Ice Sweep

Summary of Contents for GEMU090 Series

Page 1: ...Service Manual GEMU090 Series Ice O Matic 11100 East 45th Ave Denver Colorado 80239 P t N b 9081430 02 D t 9 11 Part Number 9081430 02 Date 9 11...

Page 2: ...the electrical or water supply charges related to the replacement of non defective parts or components damage by fire flood or acts of God This warranty is valid only when installation service and pre...

Page 3: ...em Page 4 Water System Page 5 Storage Page 6 Performance and Technical Specs Page 7 Electrical Sequence Page 8 Service Diagnosis Page 9 Service Diagnosis Page 10 Component Diagnostics Page 11 Ice Capa...

Page 4: ...igerated stainless steel tube containing water and a slowly rotating auger When the water gets to the freezing point ice begins to form That ice is very soft and is pushed up the evaporator tube by th...

Page 5: ...Evaporator and Auger Page 3 GEMU090 Service Cut Away View Stationary Half of Water Seal Rotating Half of Water Seal Heat Exchange Tube Coil Auger Ice Outlet Bearing Foam Insulation Water Inlet...

Page 6: ...roller during ice making If the current is too high indicating an overload the controller will stop ice making If the current is zero indicating an auger motor failure the controller will also stop ic...

Page 7: ...nt of ice and it enters this machine through the compression fitting in the back That leads to the float valve and reservoir When the float is not supported by water the float arm is down and the atta...

Page 8: ...ic lined ice storage bin covered by an insulated top panel and an insulated swing open door with gasket The ice storage bin is foamed in place so the side panels are not removable Page 6 GEMU090 Servi...

Page 9: ...uger motor restart window times there is no visible indication that the unit is in a restart mode Light Blink Information All blink once and repeat every 2 seconds Auger motor overload All blink twice...

Page 10: ...system will stop the machine and cause the Check Water light to blink Red alerting the user of a lack of water When water has returned to the reservoir the unit will automatically restart Power interr...

Page 11: ...ensor bypassed If auger motor still overloads replace gear reducer Compressor on auger on fan blade not turning Check fan blade for ease of rotation remove any blockage and retry Check fan motor repla...

Page 12: ...estricted Check drain clear of restriction Ensure it has a proper air vent Pump drain slow Check for proper pump switch operation and drainage Scale on evaporator and auger Clean with scale remover Se...

Page 13: ...but drawing high amps replace compressor Pump Switch Pump model only The pump switch activates the pump based on pressure to it from water inside the drain hose to the pump inlet It is normally open...

Page 14: ...ooled condenser or fan blade All ice making capacities listed by Ice O Matic are for clean new machines The ice storage bin is not refrigerated it is an insulated ice chest so there is meltage A restr...

Page 15: ...the evaporator tube That scale must be removed by use of ice machine scale remover using the process described in Maintenance Heavy scale build up will require the process to be repeated The inside of...

Page 16: ...screws and lifting it out 8 Remove 2 orange wires from water level sensor on top of float tank 9 Rotate ice sweep counter clockwise and remove ice sweep 10 Lift and remove ice chute 11 Remove 4 screws...

Page 17: ...ns of radial scoring 19 Remove 4 screws securing gearbox bracket to compartment base 20 Carefully lift and rest gearbox bracket against back of compartment lip 21 Remove four 5 32 allen head screws ho...

Page 18: ...bottom of the evaporator tube until flush with the bottom of the tube Be sure it is in as straight as possible Note Do NOT touch the inner ring of the water seal with fingers or sealant Wipe off with...

Page 19: ...ad screws holding breaker to evaporator 7 Lift breaker off and replace with a new part Note Be sure auger shaft is smooth and un damaged A dark finish at the bearing area is normal Replace auger if da...

Page 20: ...ition 4 Loosen nut at water valve inlet and separate inlet tube from reservoir valve 5 Pull outlet hose off reservoir tank 6 Remove screws holding reservoir to unit and lift off 7 Reverse steps to rea...

Page 21: ...an Blade or Motor 1 If equipped with drain pump follow all steps to remove pump 2 Unplug fan motor connection 3 Remove four screws holding fan motor brackets to shroud 4 Pull fan blade and motor from...

Page 22: ...st 13 Add temporary refrigeration system access valves to the discharge and suction sides of the refrigeration system 14 Recover the refrigerant 15 Remove the four hair pins securing compressor to cha...

Page 23: ...ucer and evaporator from unit or recover refrigerant and disconnect at evaporator Note If leaving evaporator gear reducer in unit have a helper support them while the cabinet is removed 17 Lift bin an...

Page 24: ...Wiring Diagram...

Page 25: ...Schematic Diagram...

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