USER GUIDE
Troubleshooting - Extended 2
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
TROUBLESHOOTING GUIDE
Concern
Potential Causes
Suggested Remedy
No Display or
Interior Lights
Unit may be in Sabbath mode
Hold
for 5 seconds to turn off Sabbath mode, test the door switch
circuit
No Interior Light
Light may be set to OFF
Check LED strip for power
Defective door switch
Use component testing in service mode and test light circuit,
manually test door switch
Condensation on
exterior of unit
Is unit exposed to high humidity or high
ambient temps?
Moisture will dissipate as ambient temperature and humidity levels
fall. Keep exterior of unit well polished to protect surface.
No Ice Production
Is unit level, is the unit getting water, is
circulation pump working?
Monitor freeze cycle to assure proper water distribution over
evaporator. Go to component testing and turn off fill valve, level unit
if needed.
Low Ice Production
Dirty evaporator, dirty condenser, faulty bin
thermistor
Clean the evaporator using U-Line cleaner, clean the condenser coil if
needed, check bin thermistor reading in service mode.
Ice Does Not Fall
Off During Harvest
Dirty evaporator, unit not level, faulty hot gas
valve
Clean the evaporator if needed, level unit if needed, test function of
hot gas bypass valve using relay toggle in service mode.
Error Message in
Digital Display
Check error log
View errors in service mode, review error and take corrective action to
resolve.
Ice is Too Thick/
Thin
Dirty evaporator, water starvation, faulty hot
gas valve
Clean evaporator if needed, check water supply, test harvest mode,
adjust ice thickness.
Standing Water in
Ice Bin
Drain hose is restricted, debris in bin drain
hole, failed drain pump
Make sure drain hose run is as straight as possible. Remove any kinks
or tight bends, pour 1/2 gallon of water into bin to test drain.
Poor Ice Quality
Is unit level, is the evaporator dirty?
Monitor freeze mode to watch water distribution over evaporator,
level unit if needed, clean evaporator if needed.
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