Hitachi HISCREW 2000 Series Instruction Manual page 26

5. TROUBLESHOOTING [SHUTDOWN/ALARM Indications on the Instrument Panel]
A/S Light: Category of
Code Action Problem
Failed or discon-
E-31 SHUTDOWN:
On (flashing) nected temperature
sensor 1
E-32 SHUTDOWN: Failed or discon-
On (flashing) nected temperature
sensor 2
Failed or
E-33 SHUTDOWN:
On (flashing) disconnected
pressure sensor
E-41 SHUTDOWN: Failed control
On (flashing) device
E-42 SHUTDOWN: Failed control
On (flashing) device
E-43 SHUTDOWN: Failed control
On (flashing) device
E-21 ALARM: Clogged air
On (flashing) intake filter
E-59 ALARM: Excessive load/
On (flashing) unload
E-22 ALARM: Low oil level
On (flashing) (option)
E-15 SHUTDOWN: Option
On (flashing)
E-54 ALARM: Option
On (flashing)
– AUTO START: Instantaneous
On (flashing) power
interruption
(IPS)
* Discharge temperature 1: Temperature at the outlet of the air end
Discharge temperature 2: Temperature at the outlet of the oil separator element
24
A
Causes
Shutdown
Yes Failure or Disconnect the power and check the TH1.
disconnection of Replace it if necessary. Tightly reconnect
thermistor TH1 the TH1 wires.
Yes Failure or Disconnect the power and check the TH2.
disconnection of
Replace it if necessary. Tightly reconnect
thermistor TH2 the TH2 wires.
Yes Failure or discon- Disconnect the power and check the PS.
nection of pressure Replace it if necessary. Tightly reconnect
sensor PS the PS wires.
Yes Failure of ROM Disconnect and reconnect the power. If a
(or printed problem still occurs, replace the printed
circuit board) circuit board.
Yes Failure of RAM
Disconnect and reconnect the power. If a
(or printed problem still occurs, replace the printed
circuit board) circuit board.
Yes Failure of E 2 ROM Disconnect and reconnect the power. If a
(or printed circuit problem still occurs, replace the printed
board) circuit board.
No Clogging of air
Clean the air intake filter element.
intake filter
No Total 1,000,000 Replace the consumable parts of suction
times loaded/ throttle valve.
unloaded
No Low oil level
Yes
No
No IPS of below 5 Check the power supply.
seconds
IPS of below 5 Check the power supply.
seconds
What Actions to Take Mark
What and How How to
to Detect Reset
Operating Automatically
temperature reset.
below –30°C
Operating Automatically
temperature reset.
below –30°C
0 (zero) MPa Automatically
during reset.
operation.
Retrying action Disconnect and
reconnect the
power.
Retrying action Disconnect and
reconnect the
power.
Retrying action Disconnect and
reconnect the
power.
Pressure Press the
differential of RESET button.
7.4 kPa
1,000,000 times Hold down
SELECT and
press RESET.
IPS of 20 ms to
5 seconds
IPS of below 20
ms
A/S
History
31
32
33
41
42
43
21
59
22
15
54
03
04