(English)
7
TROUBLESHOOTING
W
WARNING
To reduce exposure to hazardous voltage:
a. Do not attempt to service the chargers. There are no user-serviceable parts inside.
b. Do not substitute, modify or add parts to the chargers.
c. Inspect the chargers and power cords before use. Replace if any parts are damaged.
d. Do not use the chargers outdoors or in wet environments.
Use this table to help identify possible causes and corrective actions for problems you may experience. Contact 3M Technical Service to help identify
possible causes and corrective actions for any other problems.
Problem
Probable Cause
Corrective Action
Charger Power on indicator not lit
AC power cord not connected to wall outlet
Power cord not connected to charger
Power supply not functioning
Cradle not seated properly in multi-base
Check all power supply connections
Switch to alternate power source
Remove and reseat cradle
Battery will not go into charge mode
Battery is fully charged
Battery not seated properly in cradle
Battery or charger contacts are dirty
Defective battery
Defective charger
Battery too hot or too cold
Battery/charger electrical contacts are dirty
Battery has been exposed to water beyond
acceptable limits
No action necessary
Remove battery and reseat in cradle
Clean and dry electrical contacts
Replace battery
Replace charger
Allow battery to return to room temperature
Clean contacts and reseat in cradle
Cease using; replace battery and remove from
further service
Battery becomes hot during charging
(>113°F, 45°C)
Defective battery
Remove battery from charger immediately.
Replace battery and remove from further service.
Error message (amber and green light
flashing quickly -2 per second)
Fault condition
Defective battery
Remove battery from cradle and reinsert. Reseat
cradle in docking station if used. Contact 3M
Technical Service.
Replace battery and remove from further service
Charger indicates complete charge, but
battery pack on-board charge status gauge
shows less than 5 bars
Battery pack has reduced capacity due to age,
damage, or use outside of recommendation in
these
User Instructions
Remove battery pack from service and replace
with new pack
Battery pack does not fully charge within the
stated charge times
Charging location or battery excessively hot
Charge battery in room temperature location.
Allow battery to cool to room temperature prior to
charging.
TR-944N charger does not power up when
plugged in
Blown fuse in charger
Replace fuse 250V; 15A
Battery pack does not power motor blower
1. Battery contact on battery pack or blower is
damaged
2. Contaminant on battery or blower contacts
3. Battery is completely discharged (no charge)
4. Battery internal safety circuit tripped during
cleaning
5. Battery internal safety circuit tripped during
charging
1. Check that the battery contact is not bent or
broken
2. Ensure battery contacts are clean
3. Fully charge the battery pack; contact 3M
Warranty and Repair
4. Replace battery. Do not exceed battery
cleaning guidelines.
5. Separate battery and charger; contact 3M
Warranty and Repair
