SiUS39-602 Troubleshooting by Indication on the Remote Controller
Troubleshooting 129
2.3
“
A3
”
Indoor Unit: Malfunction of Drain Level Control
System (S1L)
Remote
Controller
Display
A3
Applicable
Models
FXFQ, FXDQ, FXSQ, FXMQ, FXHQ, FXAQ
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
208~230V power supply is not provided
Defect of float switch or short circuit connector
Defect of drain pump
Drain clogging, upward slope, etc.
Defect of indoor unit PC board
Loose connection of connector
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