U-Line 2115R Service Manual

Also see for 2175DWRR: Use and care guide Specifications Supplementary guide Installation guide Use and care guide

Contents

U-Line 2115R Service Manual Manual pdf 16 page image

3-1Section 3 - Service and RepairOPERATIONCLR2160GENERALUpon initial startup, this unit will enter mode number 5which is a three-minute water fill regardless of thethermistor temperatures. This only occurs when the initialstartup is caused by a power-up of the main board.Following the three-minute water fill, the unit moves into mode 1which is the freezing mode. In this mode the water is pumped fromthe sump trough over the ice maker grid by the circulation pump.This mode typically lasts 10-20 minutes and is regulated by thetemperature of the thermistor mounted near the dryer(thermistor 4).At the conclusion of the freeze cycle the unit will enter mode 2which is the ice harvest. This harvest can last up to three minutes.During this mode the water trough also refills.Before the next cycle begins, the custom electronic boarddetermines whether the bin is full. A temperature below 34°F, or atemperature below 35°F for at least one hour will stop the unitfrom producing ice. The ice-making will always stop at theconclusion of a harvest cycle. It will never stop in the middle of acycle.The custom electronic board continuously monitors the optionalP60 pump to ensure the drain line is not becoming restricted. Inthe event of a drain line obstruction, the display interface will show“P1.” If the drain remains restricted the unit will stop iceproduction until the drain clears. In the event of a partiallyrestricted drain, reduced ice rate will be noticed as the unitcontinuously turns on and off to eliminate any chances of overfillingthe unit with water. If no pump is used the pink jumper needs to beconnected to the power cord in its place.A cleaning mode is available through the user interface by using thekey sequence described in the Controls Section. The cleaningmode lasts about 45 minutes, at which point the unit will sit idlefor another 15 minutes. During this time the display will show“CL.” At the conclusion of the cycle the unit will automatically turnback on.THERMISTOR OUTAGEIn the event that a thermistor fails, the unit will stop all functionsand display “ER” on the user interface. The exact error can beaccessed via the service mode.SERVICEThe CLR2160 model uses four relays and two thermistors. Thereis a variety of built-in servicing features to aid in diagnosing theroot problem associated with a unit.To check to see which relays are currently operating, hold theCOLDER key and press the ON/OFF key three times. Whenentering the sequence, keep the COLDER key pressed until youcompletely release the ON/OFF key for the third time. The displaywill cycle through a series of numbers to tell which relays areenergized. For example, if the unit was in ice-making mode thedisplay would show 11 20 31 40 51 60 70. The first number is therelay number. In the second number, “1” means on and “0” meansoff. The relay information can be found in the Control Section.Each relay can also be turned on and off individually to determinewhether or not the board and component are operating. If a boardis suspected of not operating correctly you can run through thissequence to ensure each component is turning on and off throughthe board correctly. Go into service mode and choose option #22.This will cycle every relay on and off showing 10 11 20 21 …. If acomponent fails to turn on when the relay does, you can verify ifthere is voltage present by using a voltmeter to check the boardoutput.To view the actual thermistor readings, hold the WARMER andCOLDER keys for about five seconds. The display will cyclethrough the three thermistors and their temperatures. If athermistor is unused in a unit it will show a “0” reading. TheCLR2160 uses thermistors 2 and 4. For thermistor 4 the displaywill only show up to “99.” In the event the temperature is higherthan this the display will show a flashing “99.”TROUBLESHOOTINGError CodesE1, E2, E9 Bad thermistor errors. Replace thermistor. Checkfor thermistor errors by accessing “View thermistor# status (2,19, 20, or 21).” If the error code isrepeated, the thermistor is open or shorted. If atemperature is displayed, the thermistor is notdefective.P1 Pump circuit is detecting a drain problem. Consult aplumber to resolve the issue. If unit does not have aP60 installed, then the jumper wire is missing inplace of the pump.Any other error messages will not affect the operation of theCLR2160 model.After checking the errors be sure to clear the error log byperforming service option 12