Troubleshooting by Indication on the Remote Controller
SiUS28-902_B
130
Service Diagnosis
3.33 Electronic Thermal (Time Lag)
Remote
Controller
Display
L8
Applicable
Models
RZR, RZQ
Method of Error
Detection
The error is detected from the current flowing to power transistor into voltage with CT1 (DC
current sensor).
Error Decision
Conditions
When compressor overload (except for when startup) is detected.
Supposed
Causes
Compressor overload (during operation)
Disconnected compressor coil
Defective inverter
Defective compressor (if bearing is scratched)
Defective outdoor unit PCB