40MBAB: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24
DIAGNOSIS AND SOLUTION (CONT.)
EH0E - Water-Level Alarm Malfunction Diagnosis and Solution
Description: If the sampling voltage is not 5V, the LED displays the failure code.
Recommended parts to prepare:
• Connection wires
• Water-level switch
• Water pump
• Indoor PCB
Troubleshooting and Repair:
Power off, then rest art the unit 2 minutes
later.
Is the water-level switch
inserted properly?
Insert the w ater-l evel sw it ch
properly
NO
YES
Replace the water-level switch
NO
YES
Replace the indoor main PCB
Does a problem
remain?
YES
The unit is operating normally.
NO
Is the water level
switch broken?
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