Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Icemaker for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
32
Error Codes
Error
Code
Problem Corrective Action/Reset Details
EE
(E3)
Water Tank Opening Backup Timer
3-minute opening backup timer starts when water
tank starts to open.
If actuator motor's internal position sensor does
not indicate water tank is fully open within 3min-
utes, display shows "EE" and unit stops for 60
minutes.
If error recurs after unit resumes operation, dis-
play shows "EE" and unit shuts down.
Check actuator motor and control board.
Press the "RESET" button to reset.
EE
(E4)
Water Tank Closing Backup Timer
3-minute closing backup timer starts when water
tank starts to close.
If actuator motor's internal position sensor does
not indicate water tank is fully closed within
3minutes, display shows "EE" and unit stops for
60 minutes.
If error recurs after unit resumes operation, dis-
play shows "EE" and unit shuts down.
Check actuator motor and control board.
Press the "RESET" button to reset.
EE
(E5)
High Evaporator Temperature
If evaporator temperature 140°F (60°C) or higher
for 5sec., unit stops.
Check for harvest problem (stuck HGV or control
board relay), hot water entering unit, or shorted
thermistor.
Press the "RESET" button to reset.
EE
(E9)
Condenser Thermistor Error
If condenser thermistor is open or shorted for
2sec., unit stops.
Note: IM-500SAB does not utilize a condenser
thermistor, therefore E9 error will not occur.
Replace condenser thermistor.
EE
(EA)
Control Board Error
If model data IC is defective, unit stops.
Replace control board.
EE
(EC)
Evaporator (Cube Control) Thermistor Error
If evaporator thermistor is open or shorted for
2sec., unit stops.
Replace evaporator thermistor.
EE
(Ed)
Water Regulating Valve Error
If water regulating valve thermistor detects a tem-
perature below the water regulating valve error
detection temperature (Control Board Setting 36),
error is displayed but unit continues to operate.
Note: IM-500SAB does not utilize a water regulat-
ing valve, therefore Ed error will not occur.
Check water regulating valve.
Press the "RESET" button to reset.