A3" Indoor Unit: Malfunction Of Drain Level Control System (S1L) - Daikin FCQ18PVJU Service Manual

Troubleshooting by Indication on the Remote Controller
A3
3.3 " " Indoor Unit: Malfunction of Drain Level Control
System (S1L)
A3
Remote
Controller
Display
Applicable FCQ, FHQ (Option), FAQ (Option)
Models
Method of
Float switch OFF detection
Malfunction
Detection
Malfunction
When rise of water level is not a condition and the float switch goes OFF.
Decision
Conditions
 208~230V power supply is not provided
Supposed
 Defect of float switch or short circuit connector
Causes
 Defect of drain pump
 Drain clogging, upward slope, etc.
 Defect of indoor unit P.C.B.
 Loose connection of connector
87
SiUS28-902_a
Troubleshooting