CORNING LSE 6783 Instruction Manual - Page 7
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12.0
TROUBLESHOOTING
Review the information in the table below to troubleshoot operating problems.
Problem on
Display
Er1
Er2
Er3
13.0
CLEANING AND MAINTENANCE
Prior to any cleaning or maintenance of the unit, disconnect the power cord from the
wall outlet.
1. No routine maintenance is required on the unit.
2. Clean the unit internally and externally with a damp cloth and mild soap. Do not
immerse the unit or spill liquids into or on the unit. Allow the water bath to dry
completely inside and out before reconnecting the power and using.
Cause
Temperature probe is not in
range
Temperature is more than
5°C higher than the set
temperature
If after two hours
temperature does not reach
SET temperature
Solution
Examine temperature probe.
Faulty control board.
Examine SET temperature.
Examine parameters for heating.
Examine parameters for heater.
Faulty control board.
Examine temperature probe.
Examine heater.
Examine temperature safety fuse.
Faulty control board.
5