background image

USER GUIDE

Troubleshooting Extended

CAUTION

!

Precautions must be taken while working with 
live electrical equipment. Be sure to follow 
proper safety procedures while performing tests 
on live systems.

PLUNGER SWITCH

A plunger switch is used to monitor door state. When the 
door is closed it comes into contact with the plunger which 

closes a circuit which turns the light and display off. When 

the door is open the plunger moves outward and opens the 
circuit. If the door is left open for longer than 5 minutes the 
switch will trigger an error code and set an audible warning.

ERROR CODES

*All errors are logged in memory.
*Only door error is displayed on the display and has an audi-
ble signal.

 E1: Thermistor 1 open. 
 E2: Thermistor 2 open. 
 E3: Thermistor 3 open. 
 E4: Thermistor 4 open. 
 E5: Thermistor 1 shorted. 
 E6: Thermistor 2 shorted. 
 E7: Thermistor 3 shorted. 
 E8: Thermistor 4 shorted.
 E9: Door 1 open error.
 E10: (displayed as 10): Door 2 open
*E11: (displayed as 11): Water level (tray or reservoir) high. 
*E12: (displayed as 12): Water level low. 
*E13: Unit not calling for water
*P1: Pump circuit open
*Ice Level Issues

 

 

* See 

APPENDIX

 on following pages

Relay & DC Outputs

One of the primary functions of the main control is to 
operate the multiple relay and DC outputs during each 
cycle. Verify proper operation of these relays using the 
following procedure.

1.  Enter “Component Toggle” through the service menu.

Frequently toggling the compressor relay 
could force the compressor into overload. The 
compressor will automatically deactivate during 
an overload and will remain deactivated until the 
overload switch cools. This could take some time. 
It is important to allow the compressor at least 5 
minutes off time between relay cycles.

2.  Toggle the desired relay. (Refer to Control Operation 

for complete relay list) Its related component should 
activate / deactivate with the switching of the relay. If 
it does not, test component

Other Suspected Main Control Faults

If other components have been ruled out as being faulty, 
but the unit continues to have operating issues, it is most 

likely due to a configuration error. Some configuration 

errors can be cleared by restoring the unit to its factory 
default setting. Factory defaults may be restored through 
the service menu. If that does not work, check that the 
board is programmed to the correct model in the service 
menu.

NOTICE

52

Summary of Contents for UHNB115-IS01A

Page 1: ...USER GUIDE SERVICE MANUAL Model UHNB115 IS01A...

Page 2: ...lation Integrated Panel Dimensions Integrated Panel Installation Grille Installation Door Swing Door Adjust Maintenance Cleaning Cleaning Condenser Extended Non Use Operating Instructions First Use Co...

Page 3: ...ODUCT INFORMATION IMPORTANT Before connecting your new Nugget Ice Machine be sure to carefully follow all manufacturer recomendations throughout this guide regarding water quality Please see WATER HOO...

Page 4: ...statement will result in severe personal injury or death Warning means that failure to follow this safety statement could result in serious personal injury or death Caution means that failure to foll...

Page 5: ...e so children may not easily climb inside If the unit is being removed from service for disposal check and obey all federal state and local regulations regarding the disposal and recycling of refriger...

Page 6: ...ures may reduce the unit s ability to reach low temperatures and or reduce ice production on applicable models For best performance keep the unit out of direct sunlight and away from heat generating e...

Page 7: ...it Always keep your working area dry NOTICE Electrical installation must observe all state and local codes This unit requires connection to a grounded three prong polarized receptacle that has been pl...

Page 8: ...the unit with other adjacent cabinet doors you may need to alter the wall just behind the drain connection on the unit to accommodate the drain CUTOUT DIMENSIONS PRODUCT DIMENSIONS REAR FRONT TOP SIDE...

Page 9: ...ide Each door can be opened individually one at a time without interference However to ensure unobstructed door swing opening both doors at the same time 1 4 6 4 mm of space needs to be maintained bet...

Page 10: ...evel of 200 ppm or higher and or a hardness of 12 19 gpg can be treated by U Line s in line water filter accessories available at u line com or your local dealer ULALINEFILTER Standard ULALINEFILTERL...

Page 11: ...ion Do not use any plastic water supply line The line is under pressure at all times Plastic may crack or rupture with age and cause damage to your home Do not use tape or joint compound when attachin...

Page 12: ...e unit Unit has a solid base that will not allow the unit to drain below itself There is a possibility that hose connections may have loosened during shipment Verify all connections and fittings are f...

Page 13: ...installed drain pump If you need to install a drain pump into your unit see DRAIN PUMP section in the User Manual To order a drain pump order part number ULADRAINPUMP115V online at u line com See bel...

Page 14: ...roper fit Also test to make sure the door opens and closes freely 3 Remove grille and place a mark on the floor at the front of the unit Also place a mark on the floor in the center of the unit 4 Remo...

Page 15: ...ing s rear height Shorten the unit height in the front by adjusting the front legs This allows the unit to be gently tipped into the opening Readjust the front legs to level the unit after it is corre...

Page 16: ...sure that all drilled holes are drilled to the correct depth in order to avoid splits in the wood when hardware is installed 1 Cut the panels to the dimensions listed in the diagram below 2 Optional S...

Page 17: ...The appliance will need up to 34 1 2 876 mm to the underside of the counter to leave room for leveling adjustments A single prepared panel with insert must not weigh more than 20 lbs 10 kg Integrated...

Page 18: ...l Dimensions 3 4 20 mm 28 13 16 732 mm 2 3 70 mm 2 3 70 mm R 5 8 R 16 mm 1 8 3 mm 1 4 6 mm Wooden Insert Notch Depth 1 8 3 mm 2 3 8 60 mm 7 8 22 mm Ref Top Detail Insert Notch Top Design 1 8 3 mm 3 1...

Page 19: ...is required for proper ventilation 3 Optional Install handles and hardware NOTICE The door panel must not weigh more than 20 lbs 10 kg It is important to ensure that all drilled holes are drilled to t...

Page 20: ...mensions A minimum of 1 25 mm from the floor to the bottom of the extended integrated panel frame for proper ventilation BACK SURFACE MUST HAVE AMPLE FLAT SURFACE TO MOUNT OVERLAY PANEL FLAT AND WITHO...

Page 21: ...ill 6 pilot holes into the wood panel 1 2 12 mm deep using the holes in the door frame as a guide NOTICE It is important to ensure that all drilled holes are drilled to the correct depth in order to a...

Page 22: ...t the grille must be installed WARNING DO NOT touch the condenser fins The condenser fins are SHARP and can be easily damaged Removing the grille 1 Disconnect power to the unit 2 Loosen the two screws...

Page 23: ...l space for any knobs or pulls installed on the integrated panel frame Stainless Steel models that are installed adjacent to a wall require 2 1 4 57 mm door clearance on hinge side to allow for door h...

Page 24: ...ch pair of Torx head screws both the upper and lower hinge plates 3 Square and align door as necessary 4 Tighten Torx head screws on hinge 5 Reinstall gasket into the channel starting at the corner RE...

Page 25: ...e ice produced during the first two to three hours of operation to avoid possible dirt or scale that may dislodge from the water line When plugged in the unit will begin operating under the factory de...

Page 26: ...e Display and interior light return to normal operation Clean Mode See Cleaning section Showroom Mode Hold and for 5 seconds The F C symbol will flash Display will be lit and interior light will funct...

Page 27: ...ction resumes This ensures a constant supply of fresh ice is always available The factory default ice setting is 0 which produces a firm and compact ice nugget U Line s exclusive U Choose ice adjustab...

Page 28: ...ding Airflow and Product Loading NOTICE The unit requires proper airflow to perform at its highest efficiency Do not block the front grille at any time or the unit will not perform as expected Do not...

Page 29: ...clean towel to prevent water spotting Clean any glass surfaces with a non chlorine glass cleaner EXTERIOR CLEANING Vinyl Clad Black or White Models Stainless Models Stainless door panels handles and...

Page 30: ...ment particles and cloudiness as well as reduce chlorine and other off tastes and odors U Line recommends replacing the filter Part No ULANUGGETFILTER when you clean your machine The filter is availab...

Page 31: ...unnel slowly pour 1 5 quarts 48 oz of clean potable water into the ice dispenser tube Air and some water will exit the vent tube d Install new water filter Press and rotate 1 4 turn clockwise e Press...

Page 32: ...mental conditions more or less frequent cleaning may be necessary WARNING Disconnect electric power to the unit before cleaning the condenser NOTICE DO NOT use any type of cleaner on the condenser uni...

Page 33: ...st remain open to prevent formation of mold and mildew Open door a minimum of 2 50 mm to provide the necessary ventilation WINTERIZATION If the unit will be exposed to temperatures of 40 F 5 C or less...

Page 34: ...tion 11 DC Output 5 Option 12 Serial output Compressor 21 Model number 22 Light All Segments 23 Activate Defrost Harvest press and hold for 3 seconds to activate defrost harvest 24 Defaults press and...

Page 35: ...ode on select models Clean Mode Hold the Clean button for 5 seconds to enter Clean mode on select models 1 Plug the unit into appropriate power source as defined on the data plate 2 Once the double da...

Page 36: ...h a brief description of the normal operating sounds they make NOTE Your product may not contain all the components listed Compressor The compressor makes a hum or pulsing sound that may be heard when...

Page 37: ...Yellow Open Purple Black Yellow Open Black White FUSE N C 11 22 1 10 1 1 5 1 6 1 4 12 Pump White light Bin temp Door switch Pump Low water sensor Water shutoff Dump Valve Resevoir Valve Auger Condense...

Page 38: ...ring an anti static wrist strap that is grounded to an electrical ground or grounded water pipe Handle circuit boards carefully and avoid touching components REMOVE BASE ASSEMBLY 1 Disconnect power to...

Page 39: ...ct waterline coming from inlet valve 9 Loosen hose clamp and disconnect ice transport tube remove hose clamp 10 Loosen hose clamp and disconnect drain tube remove hose clamp 11 Cut cable tie from wire...

Page 40: ...5 Remove compression nozzle a Loosen hose clamp b Remove transport tube 6 Remove M6 socket head allen screw 7 Remove compression nozzle retainer 8 Remove compression nozzle 9 Remove main housing Disc...

Page 41: ...nstall auger 6 Install main housing a Slide main housing onto auger shaft b Install three M6x25 allen screws c Connect vent line to T fitting 7 Install compression nozzle Remove and inspect compressio...

Page 42: ...spacer ensure that key is captured in slot 14 Insert screwdriver into groove of auger shaft and pry shaft outwards 15 Insert retainer into groove ensure that retainer is aligned with hole in spacer 16...

Page 43: ...replace the part in question The part that caused the damage must be returned to U Line in its entirety The part must be clearly labeled with the serial number of the unit it was removed from the dat...

Page 44: ...r warranty labor Units must be registered prior to warranty submittal Customers may register at www U Line com A proof of purchase is required We also accept the following information to update warran...

Page 45: ...00 11 DUMP VALVE 80 55232 00 12 EVAPORATOR ASSEMBLY 80 55216 00 13 GASKET 80 55372 00 14 GRILLE ASSEMBLY 80 55373 00 15 HEAT EXCHANGER ASSEMBLY 80 55434 00 16 HINGE COVER 80 54001 00 17 HINGE ASSEMBLY...

Page 46: ...9 HARDWARE KIT GEAR MOTOR 80 55371 09 10 RESERVOIR FLOAT COMPLETE ASSY 80 55371 10 11 RESERVOIR LID O RING 80 55371 11 12 FLOAT SWITCH 80 55538 00 13 14 WATER LINE 12 SEGMENT 80 54722 01 WATER SEAL KI...

Page 47: ...ranty status Please provide the model serial number part number and part description Some parts will require color or voltage information If U Line requires the return of original parts we will inform...

Page 48: ...let below room temperature Lower than normal Partial Restriction Somewhat lower than normal vacuum Warm near room temperature Very hot Top passes warm Lower passes cool near room temperature due to li...

Page 49: ...ground or grounded water pipe Handle circuit boards carefully and avoid touching components To measure the start winding resistance measure across the C and S pins To measure the run winding resistanc...

Page 50: ...nd DC outputs located on the relay power board Included in this section are some diagnostic tips and of course if additional help is required please contact the U Line Corp Customer Care Facility at 1...

Page 51: ...r Lights Unit may be in Sabbath mode Hold for 5 seconds to turn off Sabbath mode test the door switch circuit Unplug unit wait 5 seconds plug back in If main board does not beep check for 120V at blac...

Page 52: ...Ice Level Issues See APPENDIX on following pages Relay DC Outputs One of the primary functions of the main control is to operate the multiple relay and DC outputs during each cycle Verify proper oper...

Page 53: ...t u line com are able to treat TDS up to 600 b If TDS is acceptable unit must be cleaned and any leakage addressed with a seal kit U Line service part 80 55371 13 SEE WATER HOOKUP SECTION FOR SPECIFIC...

Page 54: ...been performed A single cleaning may not resolve this condition c If customer has unit connected to a water softener have them consult a plumber to disconnect from the softener SEE WATER HOOKUP SECTI...

Page 55: ...the display This mode can be canceled by pressing and releasing The mode will automatically be changed back to ON after three hours SHOWROOM MODE This mode is designed to show units in a display envir...

Page 56: ...g Period frequency that data is output to diagnostics port 27 Factory test mode 0 Off 1 On 28 Compressor RPM 29 Freeze time adjust Model 54 only 30 Harvest time adjust Model 54 only 31 Low temp alarm...

Page 57: ...operly 23 ACTIVATE DEFROST HARVEST Press and hold for 3 seconds to activate 24 FACTORY DEFAULTS Press and hold for 3 seconds to restore all values to factory defaults 25 MAIN SOFTWARE 26 Does not appl...

Page 58: ...39 HWC524 2A 40 HWC336 1A 41 HBD324 1A 42 HBD324 2A 43 HBD524 1A 44 HBD524 2A 45 HWD324 2A 46 HWD324 1A 47 HWD524 2A 48 HWD524 1A 49 HRF124 2A 50 HRF124 1A 51 HRI124 2A 52 HRI124 1A 53 Nugget 1 Class...

Page 59: ...Light 2 Evap Fan Cond Fan 22 RE336 1A Compressor Top Left Valve Bot Right Valve Light 1 Light 2 Evap Fan Evap Fan 2 Cond Fan 23 RE515 1A Compressor Light 1 Light 2 Evap Fan Cond Fan 25 RE524 1A Compre...

Page 60: ...electric grease will help to keep thermistor connections clean and dry If you change a thermistor in the unit please re apply dielectric grease to the connection If you encounter a dirty thermistor co...

Page 61: ...improper use maintenance installation service repair acts of God fire flood or other natural disasters The product must be installed operated and maintained in accordance with your product s User Guid...

Reviews: