Manitowoc QD0322A Use And Care Manual

Also see for QD0282A: Use and care manual Service manual

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Manitowoc QD0322A Use And Care Manual Manual pdf 55 page image

Part No. 80-1375-3 5-1Section 5Before Calling for ServiceChecklistIf a problem arises during operation of your ice machine, follow the checklist below before calling service. Routineadjustments and maintenance procedures are not covered by the warranty.Problem Possible Cause To CorrectIce machine does not operate. No electrical power to the ice machineand/or condensing unit.Replace the fuse/reset the breaker/turnon the main switch.High pressure cutout tripping. Clean condenser coil. (See Section 4)ICE/OFF/CLEAN toggle switch setimproperly.Move the toggle switch to the ICEposition.Water curtain stuck open. Water curtain must be installed andswinging freely. (See Section 4)Remote receiver service valve and/orLiquid/suction line shut off valves areclosed.Open the valve(s). (See Section 2)Ice machine stops, and can be restartedby moving the toggle switch to OFF andback to ICE.Safety limit feature stopping the icemachine.Refer to “Safety Limit Feature” on thenext page.Ice machine does not release ice or isslow to harvest.Ice machine is dirty. Clean and sanitize the ice machine.(See Section 4)Ice machine is not level. Level the ice machine. (See Section 2)Low air temperature around ice machinehead section.Air temperature must be at least 35°F(1.6°C).Fan cycling control does not de-energizecondenser fan motor.Verify pressure is below cut-out setpoint,replace fan cycling control.Ice machine does not cycle into harvestmode.The six-minute freeze time lock-in hasnot expired yet.Wait for the freeze lock-in to expire.Ice thickness probe is dirty. Clean and sanitize the ice machine.(See Section 4)Ice thickness probe is disconnected. Connect the wire.Ice thickness probe is out of adjustment. Adjust the ice thickness probe.(See Section 3)Uneven ice fill (thin at the top ofevaporator).Verify sufficient water level in sumptrough. Contact a qualified servicecompany to check refrigeration system.Ice quality is poor (soft or not clear). Poor incoming water quality. Contact a qualified service company totest the quality of the incoming water andmake appropriate filterrecommendations.Water filtration is poor. Replace the filter.Ice machine is dirty. Clean and sanitize the ice machine.(See Section 4)Water dump valve is not working. Disassemble and clean the water dumpvalve. (See Section 4)Water softener is working improperly (ifapplicable).Repair the water softener.Revised 6/2003

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