4 Troubleshooting
- 47 -
Fault
Code
Fault Description
Possible Cause
Solution
A79
Motor lubricating
grease mainte-
nance pre-warning
The value of A8-31 (Motor
lubricating grease running
time) reaches that of A8-26
(Motor lubricating grease
maintenance setting time) in
maintenance parameters.
Apply the lubricating grease and clear
A8-31 (Motor lubricating grease run-
ning time).
Err80
Lubricating oil
maintenance
pre-warning
The value of A8-32 (Lubricat-
ing oil applying time) reaches
that of A8-27 (Lubricant
maintenance setting time) in
maintenance parameters.
Apply the lubricating oil and clear A8-
32 (Lubricating oil applying time).
Err81
PTC2 overtempera-
ture
The PTC thermistor is discon-
nected due to motor over-
temperature.
The DI terminal detects that
the motor PTC signal is dis-
connected.
1) Check the wiring. PTC2 indicates
the cooling blower PTC, which
must be connected to DI5 with
function 58 and COM. If no cooling
blower PTC is available, DI5 is
allocated with function 0.
2) Check whether motor overtem-
perature exists. Check the cooling
blower motor.
3) Check whether the cooling blower
PTC is damaged. Check whether
the PTC resistance is less than 3
kΩ independently.
4) Short DI5 and COM or allocate DI5
with function 0 temperately to
disable PTC2.
Err82
Oil fine separator
blocked
1)
The oil fine separator is
blocked.
2) The DI terminal setting
and wiring are incorrect.
1)
Clean the oil fine separator.
2) Check the DI terminal function
setting and wiring.
Err83
Separator blocked
1) The separator is blocked.
2) The DI terminal setting
and wiring are incorrect.
1) Clean the separator.
2) Check the DI terminal function
setting and wiring.
Err84
Oil filter blocked
1)
The oil filter is blocked.
2) The DI terminal setting
and wiring are incorrect.
1)
Clean the oil filter.
2) Check the DI terminal function
setting and wiring.
Err85
Air filter blocked
1)
The air filter of the oil fine
separator is blocked.
2) The DI terminal setting
and wiring are incorrect.
1)
Clean the air filter.
2) Check the DI terminal function
setting and wiring.