Drain Water Level System Abnormality - Daikin RZQ Series FCQ20EVA Service Manual

Troubleshooting by Remote Controller
4.6

Drain Water Level System Abnormality

A3
Error Code
Applicable
All indoor models
Models
Method of Error By float switch OFF detection
Detection
Error Decision
The error is generated when the water level reaches its upper limit and when the float switch
Conditions turns OFF.
 Defective drain pump
Supposed
 Improper drain piping work
Causes
 Drain piping clogging
 Defective float switch
 Defective indoor unit PCB
 Defective short circuit connector X15A on PCB
93
SiME281501E
Service Diagnosis