ESIE15-13B Troubleshooting by Remote Controller
Service Diagnosis 125
4.5 Drain Water Level System Abnormality
Remote
Controller
Display
A3
Applicable
Models
All models of indoor unit
Method of Error
Detection
By float switch OFF detection
Error Decision
Conditions
The error is generated when the water level reaches its upper limit and when the float switch
turns OFF.
Supposed
Causes
Defective drain pump
Improper drain piping work
Drain piping clogging
Defective float switch
Defective indoor unit PCB
Defective short circuit connector X15A on PCB
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