Troubleshooting: Error messages
6-6 Dash 3000/4000/5000 2000966-542D
Internal lithium battery is LOW.
NOTE
These messages are displayed while the patient 
monitor powers up. Once the “Internal lithium 
battery is LOW” message appears, the patient 
monitor will complete all the power-up tests. Then, 
after the last test is completed, the following 
message will be displayed on the boot loader 
screen.
ONE OR MORE POWER-UP TESTS HAVE 
FAILED ** SERVICE MAY BE REQUIRED **
DO YOU WISH TO CONTINUE MONITORING 
ANYWAY?
1 = no,   2 = yes 
The processor pcb battery may be depleted.
1. Select NO when the message, “DO YOU WISH TO 
CONTINUE MONITORING ANYWAY?” appears. 
2. Remove this patient monitor from service and use a 
different patient monitor to monitor the patient.
3. Refer to “Ordering field replaceable units” on page 7-2 
and “Replace CPU/battery housing assembly” on page 7-
44 to replace the processor pcb.
The battery switch on processor pcb battery may be in the 
off position.
1. Verify that switch 1 on the mini-dip switch (labeled S1) is 
in the ON position.
2. To move the battery switch to the ON position, complete 
the following steps.
a. If a plastic film is over the switch, remove and discard 
the plastic film.
b. Use a small, flat-head screw driver to move the switch 
to the ON position.
c. Complete all of the recommended checkout, electrical 
safety tests, calibration tests listed in “Functional and 
electrical safety checks” on page 8-1.
The processor pcb may be defective.
 Refer to “Replace CPU/battery housing assembly” on 
page 7-44 to replace the processor pcb.
Message Possible Reason/Solution