SiUS28-902_B
Troubleshooting by Indication on the Remote Controller
Service Diagnosis
91
3.3
Drain Water Level System Abnormality
Remote
Controller
Display
A3
Applicable
Models
FCQ, FHQ (Option), FAQ (Option), FTQ
Method of Error
Detection
By float switch OFF detection
Error 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
Defective float switch or short circuit connector
Defective drain pump
Drain clogging, upward slope, etc.
Defective indoor unit PCB
Loose connection of connector
Troubleshooting
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
the connector or parts may
b
e damaged.
Caution