A3" Indoor Unit: Malfunction Of Drain Level Control System (S1L) - Daikin CMSQ200A7W1B Service Manual

Troubleshooting by Indication on the Remote Controller
A3
" " Indoor Unit: Malfunction of Drain Level Control
3.3
System (S1L)
A3
Remote
Controller
Display
Applicable FMCQ, FMDQ
Models
Method of By float switch OFF detection
Malfunction
Detection
Malfunction When rise of water level is not a condition and the float switch goes OFF.
Decision
Conditions
Supposed
Causes
140
220~240V 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
SiBE28-805
Troubleshooting