Hoshizaki IM-50BAA-LM Service Manual page 35

Error Codes
Error Item
E1 Freeze error
E2 Harvest error
EE Water tank
(E3) assembly opening
error
EE Water tank
(E4) assebmly closing
error
EE High temperature
(E5) error
EE Fan motor lock
(E7)
EE Pump motor lock
(E8)
EE Data error
(EA)
EE Evaporator (cube
(EC) control) thermistor
error
Description
Freeze backup timer (45 minutes
after water tank assembly starts to close)
counts up before freeze cycle completes,
and evaporator temperature is 32°F (0°C)
or higher.
Harvest backup timer (30 minutes after
water tank starts to open) counts up
before harvest cycle completes.
Water tank assembly has not fully opened
within 60 seconds, and 3 minutes have
passed even with opening failure control.
Unit resumes operation after 60 minutes
and repeats the above error.
Water tank assembly has not fully closed
within 50 seconds, opened and started to
close again, but failed to close fully within
50 seconds.
Unit resumes operation after 60 minutes
and repeats the above error.
Evaporator temperature stays 140°F
(60°C) or higher for 5 seconds or more.
Fan motor is locked for 30 seconds with
control voltage applied.
Pump motor is locked for 30 seconds with
control voltage applied.
Unit detects the above error 3 times.
Model setting data memory IC is
defective.
Evaporator (cube control) thermistor
circuit is open or shorted for 2 seconds.
Operation Reset
Shut down Press "RESET" button
Shut down Press "RESET" button
Halt
Shut down
Halt
Shut down
Shut down Press "RESET" button
Shut down Press "RESET" button
Continue
Shut down
Shut down Replace control board
Shut down Replace thermistor
34
Press "RESET" button
Press "RESET" button
Press "RESET" button