Troubleshooting for SA Indoor Unit
SiBE18-821_C
364
Troubleshooting
5.2
Drain Water Level System Abnormality
Remote
Controller
Display
A3
Method of
Malfunction
Detection
The float switch detects error.
Malfunction
Decision
Conditions
When the water level reaches its upper limit and when the float switch turns OFF
Supposed
Causes
Defective drain pump
Improper drain piping work
Clogged drain piping
Defective float switch
Defective indoor unit PCB
Defective short circuit connector X15A on indoor unit PCB