Bosch ACS 751 Repair Instructions page 11

Error code Messages
7602 UV Dye
Sensor Connection Failed
7603 UV Dye
Sensor Connection Failed
7701 Fresh Oil
Timeout
7702 Fresh Oil
Sensor Connection Failed
7703 Fresh Oil
Sensor Connection Failed
7801 Used Oil
Timeout
7802 Used Oil
Sensor Connection Failed
7803 Used Oil
Sensor Connection Failed
7804 Used Oil
Invalid Range
8000 SYSTEM ERROR
Retry Operation. Contact tech-
support if problem persists
9001 FIRMWARE UPDATE Retry Op-
eration. Contact tech-sup-
port if problem persists.
9201 SYSTEM ERROR
No USB detected
9203 SYSTEM ERROR Retry Op-
eration. Contact tech-sup-
port if problem persists.
9204 SYSTEM ERROR Retry Op-
eration. Contact tech-sup-
port if problem persists.
9205 SYSTEM ERROR Retry Op-
eration. Contact tech-sup-
port if problem persists
9206 SYSTEM ERROR Retry Op-
eration. Contact tech-sup-
port if problem persists
9207 SYSTEM ERROR Retry Op-
eration. Contact tech-sup-
port if problem persists
9208 SYSTEM ERROR Retry Op-
eration. Contact tech-sup-
port if problem persists
Robert Bosch GmbH
Actions
R Measure the resistance across
- Red-Black
- Green-White
If any of the two measurement shows inifinite resistance, change the load sensor.
R Change the I/O board.
R Measure the resistance across:
- Red-Black
- Green-White
If any of the two measurement shows inifinite resistance, change the load sensor.
R Change the I/O board.
Replace the I/O board.
R Measure the resistance across:
- Red-Black
- Green-White
If any of the two measurement shows inifinite resistance, change the load sensor.
R Change the I/O board.
R Measure the resistance across
- Red-Black
- Green-White
If any of the two measurement shows inifinite resistance, change the load sensor.
R Change the I/O board.
Replace the I/O board.
R Measure the resistance across:
- Red-Black
- Green-White
If any of the two measurement shows inifinite resistance, change the load sensor.
R Change the I/O board.
R Measure the resistance across:
- Red-Black
- Green-White
If any of the two measurement shows inifinite resistance, change the load sensor.
R Change the I/O board.
R Allow the unit to cool for 30 minutes and switch on the unit. Try re-
covery/hose drain. Check if the blue knob on the internal refrig-
erant tank is closed. Open the blue knob If it is closed.
R Check if the electrical connections to the pressure switch are disconnected.
R Check if there is blockage in the discharge tube/manifold/blue hose be-
tween the tank and valve block. Rectify if there is leakage.
R In debug mode switch on CX and check if compressor is functioning.
Check the cable connection between the HMI board and the I/O board.
or
Replace the HMI board.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
Check if the USB disk is connected to the USB port.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
R Check the HMI board.
R Check the USB connection.
R Replace the HMI board.
Troubleshooting | ACS 751/651 | 11 ACS 751/651 | 11
1 689 975 223
| 11 en
|
2013-10-21