Si18-201 Troubleshooting - SkyAir Indoor Unit
Service Diagnosis 253
2.6.2 Malfunction of Drain Water Level System (Float Type)
Remote
Controller
Display
A3
Applicable
Models
FHYC
Method of
Malfunction
Detection
By float switch OFF detection
Malfunction
Decision
Conditions
When rise of water level is not a condition and the float switch goes OFF.
Supposed
Causes
"
Failure of drain pump
"
Improper drain piping work
"
Drain piping clogging
"
Failure of float switch
"
Failure of indoor unit PC board
"
Failure of short-circuit connector
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