Troubleshooting for SkyAir Indoor Unit SiAU18-715
332 Troubleshooting
5.2 Malfunction of Drain Water Level System (Float Type)
Remote
Controller
Display
A3
Applicable
Models
FFQ, FCQ, FBQ, FHQ
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 PCB
Failure of short-circuit connector
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