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U-Line UHCL115SS01A User Manual & Service Manual page 42

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USER GUIDE
USER GUIDE
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
TROUBLESHOOTING GUIDE
TROUBLESHOOTING GUIDE
Concern
Potential Causes
No Display or
Unit may be in Sabbath mode
Interior Lights
Defective Door Switch
No Interior Light
Light may be set to OFF
Check LED strip for power
Defective door switch
Condensation on
Is unit exposed to high humidity or high
exterior of unit
ambient temps?
No Ice Production*
Is unit level, is the unit getting water, is
circulation pump working?
Is evaporator getting cold?
Low Ice Production
Dirty evaporator, dirty condenser, faulty
thermistor
Ice Does Not Fall
Dirty evaporator, unit not level, faulty hot gas
Off During Harvest
valve
Error Message in
Check error log
Digital Display
Ice is Too Thick/
Dirty evaporator, water starvation, faulty hot
Thin
gas valve
Standing Water in
Drain hose is restricted, debris in bin drain
Ice Bin
hole, failed drain pump
Poor Ice Quality
Is unit level, is the evaporator dirty?
*Check component toggle for:
• Water valve is working
• Circulation pump is working
• Compressor and condenser fan is working - is there frost on the evaporator grid/grid
getting cold?
Troubleshooting Extended
Suggested Remedy
Hold
for 5 seconds to turn off Sabbath mode.
test the door switch circuit.
Use component toggle in service mode and test light circuit,
manually test door switch.
Check LED strip for power.
Moisture will dissipate as ambient temperature and humidity levels
fall. Keep exterior of unit well polished to protect surface.
Check door for air leaks.
Monitor freeze cycle to assure proper water distribution over
evaporator. Go to component toggle: turn on fill valve; turn on
circulation.
Level unit if needed.
Clean the evaporator using U-Line cleaner, clean the condenser coil
if needed, check bin thermistor reading in service mode. Check
condenser fan in service mode.
Clean the evaporator if needed, level unit if needed, test function of
hot gas bypass valve using relay toggle in service mode.
View errors in service mode, review error and take corrective action to
resolve.
Clean evaporator if needed, check water supply, adjust ice
thickness.
Make sure drain hose run is as straight as possible. Remove any kinks
or tight bends.
Monitor operation to watch water distribution over evaporator,
level unit if needed, clean evaporator if needed.
42
SERVICE
Troubleshooting - Extended 2

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