Stall Prevention (Time Lag) - Daikin RZQ Series FCQ20EVA Service Manual

SiME281501E

4.31 Stall Prevention (Time Lag)

L9
Error Code
Applicable RZQ
Models
Method of Error
The error is detected from the current flowing to power transistor into voltage with CT1 (DC
Detection current sensor).
Inverter PCB detects the disorder of position signal.
Error Decision
When compressor overload (when startup) is detected
Conditions
 The stop valve is not opened.
Supposed
 Pressure differential startup
Causes
 Defective outdoor unit inverter PCB
 Defective compressor (lock)
Service Diagnosis
Troubleshooting by Remote Controller
132