User manual BOSCH KAD 62V40/08 SHORT INSTRUCTIONS

[. . . ] 18 REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls . 22 REMOVAL AND REPLACEMENT: Bearing And Breaker . 24 REMOVAL AND REPLACEMENT: Water Seal REMOVAL AND REPLACEMENT: Evaporator . 26 REMOVAL AND REPLACEMENT: Gearmotor . [. . . ] Check: Voltage to the unit, restore it if there is none. Check: The master switch, switch ON if off. Check: The reset switches, ( high and low pressure): depress and release each switch. If the machine still does not start, check: the high and the low side pressures. Check the low pressure cut out, if closed, go to E; if open, it could be due to: · Low refrigerant charge · The auger not turning · Restricted system · TXV not opening 1. Check the low side pressure, the low pressure cut out opens at pressure below 4 psig. Check if the auger is turning, if it is not, remove the gearbox and: Check for internal damage, repair and replace in the machine. Check for low charge, add some refrigerant, if the unit will operate, (normal low side pressure being about 34 psig) stop and look for a leak, repair, replace the drier, evacuate, and weigh in the nameplate charge. If, with added charge, the unit does not operate: Check for a restricted system, replace the drier, evacuate, and weigh in a nameplate charge. Check for a Thermostatic Expansion Valve that does not open, if defective, replace it. Replace the drier, evacuate, and weigh in the nameplate charge. E. If the unit still does not run, replace the ice level sensors. If the bin empty light is still OFF, check the circuit board. Unplug "opto trans" and "LED" connectors from the circuit board. Plug "opto trans" and "LED" connectors from the Scotsman Electronic Control Tester Model NM1 into the circuit board. Move the "bin full" switch on the tester to the full position. The bin full light on the tester should be ON, if not, replace the circuit board. If the bin full light on the tester is ON, move the tester switch to "bin empty" the light on the tester should go OFF and the bin empty light on the circuit board should go ON. If it does as above, and the machine still does not run, replace the ice level sensors. If the transformer is fine, and the "no water" light is ON, check the water level sensor. Check the water level in the reservoir, restore if low. Remove the water level sensor from the reservoir and clean the tip if dirty. [. . . ] The low side pressure is more important on an ice machine than the high side. Allen · If gauges must be used, use very short hoses to Wrench minimize refrigerant discharged into the air. · Refrigerant should not be added except as a way to determine the proper operation of the product. If the system was low on refrigerant, Torque Stem to there is a leak, and it must be found and Torque 6-8 ft. [. . . ]