Drain Level Control System (S1L) Abnormality - Daikin VRV-WIII RWEYQ72PTJU Service Manual

SiUS30-1301
3.3

Drain Level Control System (S1L) Abnormality

A3
Error Code
Applicable FXFQ, FXZQ, FXDQ, FXMQ-P, FXMQ-M (Option), FXHQ (Option), FXAQ (Option)
Models
Method of Error
By float switch OFF detection
Detection
Error Decision
When rise of water level is not a condition and the float switch goes OFF.
Conditions
 208~230V power supply is not provided
Supposed
 Defective float switch or short circuit connector
Causes
 Defective drain pump
 Drain clogging, upward slope, etc.
 Defective indoor unit PCB
 Loose connection of connector
Service Diagnosis
Troubleshooting by Indication on the Remote Controller
153