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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
8.7.6 EH 0E(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
• Indoor PCB
If the water-level switch is
broken?
Is the water-level switch
inserted properly?
Insert the water-level switch
properly
NO
YES
Replace the water-level switch
NO
Replace the indoor main PCB
Does a problem
remain?
YES
The unit is operating normally.
NO
Power off, then restart the unit 2 minutes later.
YES
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