Midtronics GR1 240, Instruction Manual, Page: 17 / 20

17
MESSAGES
1. The “Incorrect Voltage Error” message means that the user has
made an incorrect menu selection (e.g. selected 12V but
connected to 24V) or it means that the GR-1 was connected
across a battery voltage that the GR-1 is not rated for.
2. The “Overcurrent Error!” message means that a battery or
vehicle electrical system has tried to draw too much current from
the GR-1. Observe all ratings, limits, precautions and warnings.
Check all connections and GR-1 menu selections.
3. The “Part Number Corrupt!” message means that the information
for a particular JIS battery number is corrupt. Except for testing
with this JIS number, the GR-1 is fully functional. Obtain the actual
CCA rating for the battery and input this CCA value for “Battery
Rating” instead of using the JIS number.
4. The “Internal Memory Error” message means that an internal error
has occurred in the GR-1 and it should be sent back for service.
OPERATION
1. The ON/OFF switch is toggled to the on position but the GR-1 does not power-up.
a. Make sure the AC power cord is completely inserted into the AC outlet.
b. Make sure the AC outlet is live (check fuse or circuit breaker).
c. Check the AC power cord for damage.
2. The GR-1 is on, the clamps are connected per Instruction Manual, but the display still shows “Check Clamp
Connections”.
a. Make sure that both jaws of the charging clamp come in good contact with the connection point. “Check
Clamp Connections” will remain on the display, as long as half of one clamp is not making good contact.
3. The GR-1 is displaying messages in the wrong language.
a. See OPTIONS (4): Language.
TROUBLE-SHOOTING
Incorrect Voltage Error
Disconnect Clamps
Over-current Error!
Part Number Corrupt!
Test Using CCA
Internal Memory Error
Return Tool for Service