Troubleshooting for SA Indoor Unit - FFQ, FCQ, FDBQ, FBQ, FHQ Series SiBE121021_C
320 Service Diagnosis
6.2 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
îš„
Defective drain pump
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Improper drain piping work
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Clogged drain piping
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Defective float switch
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Defective indoor unit PCB
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Defective short circuit connector X15A on indoor unit PCB