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Metro Power III Owner’s Manual GF0600059RevB06, November 2006
37
TROUBLESHOOTING, BATTERY CHARGER
SYMPTOM CHECK—ACTION
Battery charger Note: The charge indicator LED may be green or ash green when the batteries rst begin
green LED to charge, but should change to yellow when the batteries are charging.
ashing, batteries
won’t charge
Batteries not connected—connect batteries.
Battery terminals not connected—connect battery terminals.
Batteries not connected properly, or polarity reversed—correct connections.
Batteries severely discharged, below
1
/2 volt—replace batteries.
Batteries defective—replace batteries.
Output fuse blown—check / replace the output fuse.
Warning: Before checking the output fuse, disconnect battery charger from both
power outlet and wheelchair battery charger receptacle.
To check the output fuse:
1. Unscrew fuse, shown in illustration, in direction
of arrow.
2. Replace with same size and type.
Warning: Do NOT replace the output fuse with the AC fuse. They have different fuse
ratings, and interchanging them could result in fire.
Contact your Graham-Field dealer.
Battery charger green Note: The charge indicator LED may be green or ash green when the batteries rst begin
LED ashes, but to charge, but should change to yellow when the batteries are charging.
batteries charge
Batteries severely discharged—if LED changes to yellow, batteries will charge, but will take longer
than usual.
Contact your Graham-Field dealer.
Battery charger charge The charge indicator LED may icker between green and yellow when the batteries are nearly
indicator LED ickers nished charging, but should change to green when the batteries are completely nished charging.
between green & yellow
Batteries severely discharged. Replace batteries.
Batteries not charging, Check that the battery charger is connected and switched ON.
battery charger red LED
not illuminated Check that the battery charger is plugged into a working power outlet.
Battery voltage switch on wrong setting—check and ensure that for
North America, switch is set to 115V. If not, use a small screwdriver
to change to correct setting as shown. Check / replace the AC fuse.
Warning: Before checking the AC fuse, disconnect the battery charger from both
power outlet and wheelchair battery charger receptacle.
To check the AC fuse: (see next page)
FUSE
output fuse
front
panel
115
back
panel
AC voltage
switch