Diagnostics And Testing; Service Center Menu; Diagnostics And Troubleshooting; Calibrate Load Cells - Bosch ACS 753 Repair Instructions

Diagnostics and Testing

NOTE: These are the Service Options at the time of printing this service manual. Some options
may be added or deleted in future circuit board and software updates and revisions.
WARNING: Never change the default settings unless directed by the factory.
Otherwise the unit may fail to operate properly.
WARNING: Never give the programming or service codes to customers.

Service Center Menu

NOTE: Consult the Technical Service Bulletins
for the latest software version as applicable. To
navigate through the Service Menu, use the
keypad and arrow keys.

Diagnostics and Troubleshooting

1. Turn unit on and allow it to run through the
boot sequence.
2. Select NEXT icon.
3. Select MENU icon.
4. Select MAINTENANCE.
5. From the maintenance menu, scroll up and
find SERVICE MENU.
6. Enter yearly password then select OK icon.
The following displays:
• To perform any of the checks in the Service
Menu, use the up and down arrows to scroll
to the desired test listed and select OK icon.
To exit the Service Menu, select BACK icon.
•
SP00D00609 2018-03-26

DIAGNOSTICS AND TESTING

ACS 753, ACS 763, ACS 863 Service Manual
Service Menu
• Calibrate Load cell
• Output test
• Input Test
• Calibrate air flow
• A/C unit internal clearing
• Service vacuum
• End user install
• Maintenance counters
• Keypad test
• Set serial number
• Set Manufacturing date
• Set boot mode
• Reset Board
• Refrigerant identifier
• Charge leak test
• 10 days leak test
• Default vacuum time
• Default vacuum leak test time
• Default precharge leak test time
• Service hose length
Calibrate load cell
All units include load cell scales: ISV Load Cell,
Drain Load Cell, PAG Load Cell, POE Load Cell
and Dye Load Cell.
ISV Load Cell Calibration
1. After selecting Calibrate Load Cell from
the Service Menu by pressing OK icon, the
following displays:
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Robert Bosch GmbH