
Doc. No. OM-101
Version 1.9: Jan. 16, 2009
34 (40)
TROUBLESHOOTING
TROUBLESHOOTING
1. NO CONTROL UNIT DISPLAY
1.1
Are 16 D-cell Alkaline
batteries in the container?
1.2
Is the battery polarity
correct?
1.3
Replace batteries. Is
there a display?
yes
no
Insert batteries
Re-insert batteries
no
yes
1.4
Is there contact between
all batteries and connectors?
no
no
1.5
Is the battery holder
malformed?
1.6
Adjust contact spring
tension. Is there a display?
no
yes
yes
no
1.7
Adjust contrast:
Press "Menu/Enter"
Press "plus" twice
Press "Menu/Enter"
Hold "plus"
Is there a display?
no
Replace container
1.8
Repair battery holder.
Is there a display?
no
Go to step 1.7