SiBE341027
Troubleshooting by Remote Controller
Service Diagnosis
129
2.17 Current Sensor Abnormality
Remote
Controller
Display
J2
Applicable
Models
RQYQ-PY1B
Method of Error
Detection
Error is detected from the current value detected by current sensor.
Error Decision
Conditions
When the current value detected by current sensor becomes 5A or less, or 40A or more during
STD compressor operation.
Supposed
Causes
Defective current sensor (A6P, A8P)
Defective outdoor unit PCB
Defective compressor
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the current sensor
mounted on the T-phase
(A6P) and R-phase
(A8P) wire?
Are the current sensors
inversely connected to two
STD compressors?
Is the connector for
current sensor
connected to X25A,
X26A on outdoor unit
PCB (A1P)?
Replace the current sensor.
↓
Retry
Replace the outdoor unit PCB.
Connect the connector, and
operate unit again.
NO
NO
Mount the current sensor
correctly, and operate the unit
again.
YES
Correct the connections between
the current sensors and the STD
compressors.
Applicable compressor
coil wire is broken.
YES
Replace the compressor.
NO
NO
YES
YES
Check the current sensor corresponding to the error code
“
J2
” in the monitor mode.
{
Confirmation of error 4 shows as follows:
→
Current sensor for STD compressor 1
{
Confirmation of error 4 shows as follows:
→
Current sensor for STD compressor 2
{
Explanation for “ ”
Master unit
Slave unit 1
Slave unit 2
System
