Installation Instructions G5 - Revision C, September 2019
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3M™ Drive-Thru System Model G5
Installation Instructions G5
Revision C, September 2019
Figure 28.
C. Battery and Battery Charger Troubleshooting
Table E. XT-1 Battery and Battery Charger
Problem Possible Cause Solution
No lights come on when a battery
is inserted into charger.
Dirty contacts on battery or charger. Clean contacts on battery and charger.
No power to charger. Make sure power transformer is plugged
into charger and a “live” outlet.
Defective battery. Try a known good battery.
Defective charger. Call for authorized service.
Short battery life. Worn out batteries. Replace battery.
Wrong type of power transformer
used for charger.
Make sure power transformer is marked
“Secondary Voltage 14 VAC.”
The green light on the charger
never comes on.
Defective battery. Replace the battery.
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