Drain Level Control System Abnormality - Daikin Super multi NX E Series Service Manual

Troubleshooting for SA Indoor Unit
6.2

Drain Level Control System Abnormality

A3
Error Code
Method of Error
The float switch detects error.
Detection
Error Decision
When the water level reaches its upper limit and when the float switch turns OFF
Conditions
Supposed
Causes
185
Defective drain pump
Improper drain piping work
Clogged drain piping
Defective float switch
Defective indoor unit PCB
Defective short circuit connector X15A on indoor unit PCB
SiBE121135_A
Service Diagnosis