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GEM Models A/W

Service Diagnosis

Page

Symptom

Possible

Cause

Probable

Correction

No ice is made nothing operates.

•Unit off due to no power

•Restore Power

•Unit off due to master switch in

OFF

•Switch master Switch to

position

•Unit off due to low water level

•Check water supply, filter

strainer, float valve. Correct

water

supply.

•Unit off due to ice level sensors.

•Check/clean ice level sensors.

(Photo Eyes ) blocked.

•Unit off due to scale on water level

•Clean water level sensor.

sensor.

•Unit off due to high pressure control open.

•Check for water interruption

(water

cooled)

fan

motor

failure.

•Auger motor hums but does not turn.

•Auger can’t turn. Circuit board

has

not

yet

shut

down.

•Unit is shut down.

•Circuit board has shut ice

machine down due to high

auger

motor

amp

draw.

Check

for

cause

high

amp

draw,

including bearings, gear motor

condition

and

scale

auger

and

evaporator.

•Low

pressure

control

open.

•Auger

not

turning

due

to:

motor

failure;

auger

relay

failure on circuit board; or

gears

stripped.

Check

drive train.

•TXV restricted or not metering.

Check bulb temperature.

•Lack

refrigerant,

check

for

leak.

•Check for a restricted system.

•No

power

circuit

board.

•Check

harness

•Hi or low pressure cut outs

open.

•Circuit

board

gear

motor

relay

will

•Check/replace

board.

not

close.

No ice, auger motor is turning.

•Compressor contactor coil is open.

•Check/replace contactor.

•Compressor

will

not

start.

•Check

start

capacitor.

•Check start relay.

•Check compressor windings.

Содержание GEM1856

Страница 1: ...11100 East 45th Ave Denver Colorado 80239 Part Number 9081350 01 17 3143 01 Date 10 08 SERVICE AND INSTALLATION MANUAL GEM Models Air and Water Cooled GEM0650 GEM0956 GEM1256 GEM1856 Pearl Ice Series By Ice O Matic ...

Страница 2: ......

Страница 3: ...nical Service Department E Mail Tech service iceomatic com Telephone Numbers Any Service communication must include 800 423 3367 All Departments Model Number 888 349 4423 Technical Assistance Only Serial number 303 371 3737 A detailed explanation of the problem Keep this manual for future reference The GEM Service Parts Manuals are available separately Ice O Matic icemakers and dispensers are not ...

Страница 4: ...ation Performance Page 17 Sanitizing and Cleaning Page 18 Bearing Maintenance Page 19 Sensor Maintenance Page 20 Air Cooled Maintenance Page 21 Auger Maintenance Page 22 Service Diagnosis Page 23 Control System Diagnostics Page 25 Removal and Replacement Water Reservoir and Bin Controls Page 26 Removal and Replacement Bearing and Breaker Page 27 Removal and Replacement Auger Page 28 Removal and Re...

Страница 5: ... for carrier s inspection Visible Loss or Damage Any external evidence of loss or damage must be fully described and noted on your freight bill or express receipt and signed by the carrier s agent Claim should be filed on a form available from the carrier Concealed Loss or Damage If loss or damage does not appear until merchandise has been unpacked make a written request for inspection by the carr...

Страница 6: ...age interruption in 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 preventive maintenance are performed by a Company authorized distributor a Company authorized service agency or a Company Regional Manager The Company reserves the right to refuse cla...

Страница 7: ...O Matic assumes no responsibility for improperly installed equipment Water Filtration A water filter system should be installed with the ice machine Clearance Requirements Self contained air cooled ice machines must have a minimum of 6 inches 15cm of clearance at the rear and sides of the ice machine for proper air circulation Stacking Ice O Matic Pearl Ice machines are not designed to be stacked ...

Страница 8: ...GEM Models A W For The Installer Page 2 GEM0650 0655 0956 0955 A W ...

Страница 9: ...GEM Models A W For The Installer Page 3 GEM1256A W ...

Страница 10: ...dels A W For The Installer Page 4 GEM1856 1855 Air Note The GEM1800 series is equivalent to two GEM950 s consolidated into one cabinet Utilize the GEM 950 specifications for service and technical information ...

Страница 11: ...elius Model KBT15022 R629088514 Cornelius Model Does not fit Cornelius ED or DF200 KBT25022 KGEM200 KBT25022 KGEM200 KBT25030 KGEM200 Cornelius ED or DF250 KBT25022 KGEM250 KBT25022 KGEM250 KBT25030 KGEM250 Lancer Nugget Ready Flavor Select N A N A N A SerVend S 200 SV200 S 250 SV 250 N A N A N A Ice Machine Specifications Refrigerant Charge oz R404 Maximum Fuse Size Minimum Circuit Ampacity Conde...

Страница 12: ... far forward on the bin the opened door may not be stable resulting in an unexpected closing of the bin door If the ice machine is to be mounted on a bin or dispenser other than an Ice O Matic refer to the manufacturer s instructions for machine mounting Ice O Matic will not be responsible for damage or injury that results from unexpected closing of the bin door as a result of the ice machine bein...

Страница 13: ...at and noise it produces are not objectionable Air cooled machines discharge hot air out the back and must have a minimum of 6 inches of clearance behind the ice machine Space for maintenance access is also important If two units are placed side by side on a bin side access becomes even more important Two Units on One Bin Allow 6 Clearance for Air Circulation ...

Страница 14: ...eatment should be followed Drains Air Cooled Models Connect a rigid drain tube to the FPT drain fitting at the back of the cabinet The drain is a gravity type and a inch per foot fall is the minimum acceptable pitch for the drain There should be a vent at the highest point of the drain line and the ideal drain receptacle would be a trapped and vented floor drain Use only inch rigid tubing Water Co...

Страница 15: ...is to earth ground Connect the ice machine to its own electrical circuit so it is individually fused Voltage variation must remain within the limitations even under starting conditions Note All external wiring must conform to national state and local electrical codes The use of a licensed electrician is required to perform the electrical installation Electrical Inlet Power Supply Water Cooled Mode...

Страница 16: ...n made and checked for leaks _____5 Is the ice machine and storage bin level _____6 Is there a minimum of 6 inches of clearance at the back of the machine for proper service access and air circulation _____7 Is the water pressure a minimum of 20 psig _____8 Has the ice machine been secured to the bin _____9 Is there clearance over the top of the ice machine for service access ____10 Is there a wat...

Страница 17: ...ir cooled models the condenser will begin to discharge warm air on water cooled models the water regulating valve will open and warm water will be discharged into the drain 5 The unit should soon be making ice if desired the low side pressure may be checked it should be 32 psig 2 psig The suction line temperature at the compressor is normally very cold nearly to the point of frost up to the compre...

Страница 18: ...intains the water level in the evaporator at a constant level and it also contains the water level sensor Water Level Sensor Senses if there is water in the reservoir to make ice out of Will shut the ice machine off if there is no water in the reservoir Ice Discharge Chute Directs the ice produced by the evaporator into the storage bin Ice Level Sensor An electronic eye it senses the presence of i...

Страница 19: ...ntrols the operation of the ice machine using input from the sensors and pressure controls Switches loads on and off thru relays Reference Photo Below Potential Relay The compressor start relay Mode ON OFF Switch Manual control for the machine Control Board Water OK Light Power Light Service Light Freeze Light Bin Full Light LED3 LED1 Compressor Relay Auger Relay ...

Страница 20: ... the sealing action being where the two faces meet Ice Sweep A plastic cap with fingers It revolves with the auger to sweep the ice into the ice chute Breaker Divider Where the ice is compressed and much of the extra water is squeezed out of it before it is discharged into the bin Motor A split phase motor that drives the gear reducer Thrust Bearings As the ice is pushed up the evaporator the auge...

Страница 21: ...ctor opens The auger motor stays on for 1 more minute clearing out ice in the evaporator and then The auger motor relay opens LED3 goes out and the auger motor stops The compressor will not restart until 2 minutes or more have passed after last shutdown If the path between the ice level sensors remains clear for more than 10 seconds the ice machine will restart Control Board Protection Devices Whe...

Страница 22: ...ottom of the reservoir tank to the bottom of the evaporator Reservoir overflow or evaporator condensation is routed to the drain Water cooled models have a separate water circuit for the cooling water The water enters at the rear goes to the water regulating valve then to the water cooled condenser and down the drain Water System Water Inlet Water Level Evaporator Water Inlet Ice Chute Evaporator ...

Страница 23: ...ir Cooled 34 38 PSIG Water Cooled 32 PSIG Typical Discharge Pressure Air Cooled 220 275 PSIG Water Cooled 245 PSIG Typical Compressor Amp Draw GEM0650 A W 115 60 1 8 9 Amps GEM0655 A W 230 50 1 5 7 Amps GEM0956 A W 208 230 60 1 4 5 Amps GEM0955 A W 230 50 1 4 5 Amps GEM1256 A W 208 230 60 1 5 6 Amps GEM1855 Air 230 50 1 4 5 Amps GEM1856 Air 208 230 60 1 4 5 Amps Typical Auger Drive Motor Amp Draw ...

Страница 24: ...ir and the reservoir is nearly empty switch the master switch to OFF 11 After draining the reservoir as in step 6 wash and rinse the water reservoir 12 Go thru steps 13 18 to sanitize the ice machine water system 13 Mix two 2 gallons of sanitizer solution Use an approved sanitizer A possible sanitizer solution may be obtained by mixing two 2 gallons of warm 90 115 F potable water with one 1 ounce ...

Страница 25: ...ds 5 Inspect the bearing There should be plenty of grease in sight If grease is needed the bearing and breaker should be removed to check the action of the bearing It should rotate freely 6 To remove the breaker remove the lower ice chute then take out all four 4 Allen head cap screws and pull the breaker off the auger and evaporator 7 If the bearing only needs grease inject grease into the bearin...

Страница 26: ... can see At least twice a year remove the bin control sensors from the base of the chute and wipe the inside clean as illustrated Water Sensor The ice machine uses a probe in the water reservoir to determine if there is water At least twice a year remove the probe from the reservoir and wipe the tip clean of mineral build up Clean the probe s tip with ice machine cleaner and a soft cloth ...

Страница 27: ...r if applicable The filter may be cleaned or replaced Clean the condenser the condenser may appear to be clean on the surface but it can still be clogged internally Check with a flashlight from the front to see if light can be seen through the condenser fins GEM0956 Step 1 Remove the Top Panel Step 2 Remove two screws and unplug fan motors Step 3 Pull fan motor assembly up and to the right to remo...

Страница 28: ...n on removal of these parts see Removal and Replacement 1 Disconnect electrical power to the ice machine 2 Turn off the water supply to the ice machine 3 To remove the auger remove the front and top panels 4 Push back the bail clamp holding the ice chute cover to the ice chute and remove cover 5 Remove ice chute from evaporator 6 Remove four 4 Allen screws holding breaker to evaporator 7 Drain the...

Страница 29: ...can t turn Circuit board has not yet shut it down Unit is shut down Circuit board has shut ice machine down due to high auger motor amp draw Check for cause of high amp draw including bearings gear motor condition and scale on auger and in evaporator Low pressure control open Auger not turning due to motor failure auger relay failure on circuit board or or gears stripped Check drive train TXV rest...

Страница 30: ...r water seal leaks Check base of evaporator and drip pan If the seal leaks shut off the water remove the auger and replace the water seal Check the gear motor for water infiltration Excessive water use Water cooled model water regulating Adjust to 245 PSIG discharge valve not adjusted properly pressure Reservoir float valve leaks thru Replace float valve or seat Water cooled model overcharged Reco...

Страница 31: ...e the water sensor plugs into and place the other end in the water The WATER OK should go ON If it does not replace the board 3 Ice sensor Check Is the BIN FULL light OFF If it is OFF and the SERVICE light is OFF and the unit is not running replace the control board a If it is OFF and the auger motor is running but the compressor is not check the compressor contactor coil b If it is ON the ice sen...

Страница 32: ...ws from reservoir bracket and remove reservoir from ice maker 9 Reverse to reassemble Water Sensor Float Assembly Locking Tabs Ice Chute Slide Bin Controls to Remove Bin Controls Ice Level Sensors 1 Disconnect electrical power supply 2 Remove the front panel 3 Remove the control box cover 4 Locate ice chute at the base of the chute in front of and behind it are two plastic bin control mounts 5 Sli...

Страница 33: ...ly from auger and evaporator Fig 3 7 Service the bearing Check for rust rough spots and damage a The bearing is pressed into the breaker to remove the bearing and replace it an arbor press is needed b Replace lower seals before installing new bearing in breaker Note Seals must be pressed in with a tool pushing against the outer edge only they will not install by hand c Replace parts as required Re...

Страница 34: ...over from the breaker Note Left hand Threads b Unscrew auger stud from top of auger c Unscrew four 4 Allen head cap screws holding breaker to evaporator d Lift up and remove breaker from evaporator e If the auger is stuck use a slide hammer type of puller to pull on the auger at the threaded hole The size of that hole is 5 8 18 10 Inspect the auger the critical areas of the auger are a The auger b...

Страница 35: ...the bottom of the evaporator slightly past the groove for the snap ring 2 Replace the snap ring and pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the auger and clean the mounting area 4 Place a small bead of food grade silastic sealant Such as 732 RTV on the area of the auger where the water seal is to be...

Страница 36: ...in the new evaporator at the old tubing connections 6 Install a new drier in the liquid line 7 Evacuate the system until dehydrated then weigh in the nameplate charge Check for leaks 8 Install auger breaker breaker bearing assembly and ice discharge chute in reverse order of disassembly To Reassemble the Evaporator and Auger 1 After the gear motor has been inspected fasten the evaporator to the ge...

Страница 37: ...screws holding the gear motor to the base of the machine remove the gear motor from the machine Note Bench test the gear motor check for oil leaks noise and amp draw To Inspect the Gear Motor Water Shed 1 Remove the cap screws holding the gear motor case halves together and pry the two cases apart 2 To lift off the cover lift up until you can feel internal contact then pull the cover towards the o...

Страница 38: ...Remove the two 2 head bolt from the top end of the fan motor assembly Fig 1 5 Lift up the fan motors and bracket assembly about inch and pull out the fan assembly out the right service access hole Fig 2 6 Repair as needed 7 To Reassemble Place the fan motor assembly lower flange holes over the two Allen head cap screws in the base and install the hex head boltsat the top of the assembly Plug the f...

Страница 39: ...a sight glass and or a restricting device such as a Charge Faster installed in it for metering liquid into the low side of the system 1 After a through evacuation shut off the manifold valves and switch off the vacuum pump R404A Tank Must Be in Liquid Dispensing Position Check Tank Low Side High Side Torque Stem to 6 8 ft lb Torque caps to 7 12 ft lbs 2 Place a drum of R404A onto an electronic sca...

Страница 40: ...GEM Models A W Wiring Diagram Page 34 Wiring Diagram GEM0650 A W ...

Страница 41: ...GEM Models A W Wiring Diagram Page 35 Wiring Diagram GEM0956 A W GEM1256A W ...

Страница 42: ...GEM Models A W Wiring Diagram Page 36 Wiring Diagram GEM0655 A W GEM0955 A W ...

Страница 43: ...GEM Models A W Wiring Diagram Page 37 Wiring Diagram GEM1856 Air ...

Страница 44: ...GEM Models A W Wiring Diagram Page 38 Wiring Diagram GEM1855 Air ...

Страница 45: ..._____________________________________ ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ ____________________________________________________________________________________________________________ ___________________________________...

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Ice-O-Matic GEM1856, Руководство по обслуживанию и установке

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