User Guide & Service Manual
USER GUIDE
u-line.com
Troubleshooting Extended
APPENDIX
E11: Sensor in base near fan detecting water
This sensor is designed to detect water escaping the 
product due to any type of malfunction inside the machine.   
Once activated, the only way to reset this error is to 
completely dry the two probes and cycle power to the 
machine via the rocker switch or power cord. Once power 
is cycled, it will take 20 minutes to reactivate the error 
code. Only the drain pump will retain power and be able to 
activate under this condition.
Inspect the entire base area in front and behind 
the sensors.
Area Behind Sensors is Wet
1.  If the unit is equipped with a drainage pump, inspect it 
for leaks - check connections.
2.  Remove pump and check all connections on water 
valves, water supply, and drain.
3.  Check bolt on water reservoir. If loose, it may leak 
during a clean cycle when reservoir is lled to the top. 
Torque Spec. is 16 in-lbs.
4.  Check areas around ice maker auger on both ends. If 
any leakage is evident, it is likely poor water quality 
and/or failure to clean is the cause.
a.  Check TDS - if outside tolerance, please report 
to factory and advise homeowner that repairs 
cannot be made to unit until water quality issue is 
resolved. Filters available at 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)
Area in Front of Sensors (Condenser Side) is Wet
•  Check connection from bin to drain.
No Water is Evident
1.  Power cycle to reset error
2.  Check sensors to ensure there is a gap between   
sensors and pan as shown.
3.  If error persists, check wiring to sensors for a  
short.
E12: Float switch in reservoir not rising
This error is designed to ensure sucient water exists to 
produce ice, thus preventing permanent damage to the 
module. In order for this error to occur, the ice-making 
sequence must initiate two tries to ll the reservoir. This 
may take an hour or more to generate the error code.  
Steps to check and correct - remember it is 
necessary to power cycle after making the 
corrections. 
1.  Check incoming water supply to ensure it is turned on 
and has sucient pressure.
2.  Verify water lter(if applicable) is in place and has 
been replaced on schedule.
3.  If unit is a 1 Class product, enter service mode and 
activate relay 4 to determine if unit lls with water. 
a.  If it does not ll, check water valve for power 
during sequence.
•  If there is power, check valve resistance to 
determine if coil is shorted.
•  Check valve to ensure it is not blocked with 
debris.
Water 
Sensors 
Area Behind 
Sensors
Area In 
Front 
Sensors
Gap 
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