SIE-86
Troubleshooting
Service Diagnosis
69
5.13
Operation Halt Due to Compressor Startup Error
(E6)
Remote Controller
Display
EEEE666
6
Indoor unit LED
Display
A
5
1
3
2
4
3
4
4
3
Method of
Malfunction
Detection
Compressor startup errors are detected using input current detected by CT and compressor’s operation
frequency.
Malfunction
Decision
Conditions
When the inlet current is over the setting value.
∗
Setting value = (145 / 256
∞
Output frequency) - 6 (A)
When a compressor startup error is generated 16 times consecutively, the system shuts down. (The 16
time counter resets itself when OL, insufficient gas or compressor startup error does not occur within 60
minutes of compressor operation time (cumulative time) after the error generation.)
Supposed Causes
Startup error due to faulty compressor.
Startup error due to faulty outdoor unit PCB.
Startup error due to closed stop valve.
Detection error due to faulty outdoor unit PCB.
Troubleshooting
Check No.3
Refer to P.76
Check No.4
Refer to P.78
Check No.15
Refer to P.82
Check No. 3
Power transistor check
Is it normal?
Are the U, V
and W phases output in
good balance?
Does
the error occur
16 times consecutively,
causing system
shut-down?
Input current check.
Check No. 15
Compressor / refrigerant system
check
Input
current is over setting
value.
Is the stop valve open?
Check No. 4
Power transistor output check
Stop due to
compressor startup error
does not regenerate.
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Open the stop valve fully.
Replace the outdoor PCB.
Check the harness, replace the
outdoor PCB.
Replace the outdoor unit PCB.
Clogging capillary tube and replace it.
Replace the compressor.
(MF012)
Si-86.book Page 69 Friday, June 23, 2000 10:26 AM
