Graham Field METRO POWER III, Owner'S Manual

Page: 35 / 44

Metro Power
III
Owner’s Manual 02002183 Revision A, January 2006
3
SYMPTOM BATTERY POSSIBLE CAUSE CORRECTIVE ACTION
GAUGE
LIGHTS
Wheelchair Off
won’t drive
Flash fast Control system fault The Controller safety circuits have operated and the Controller has
(even with been prevented from moving the wheelchair. This indicates that there
joystick is a fault. Please follow this procedure:
released)
1. Turn the Controller’s ON/OFF switch off.
2. Ensure that all Controller and wheelchair connectors are securely mated.
3. Check battery condition.
4. If you can’t find the problem, try using the following Battery gauge diagnostic guide.
5. Turn the Controller on again and try to drive the wheelchair. If the fault lights flash again,
do not try to use the wheelchair; see your dealer.
Wheelchair On, steady All is well None
drives
Flash Low batteries Controller is functioning correctly but you should charge the batteries
slowly as soon as possible.
Wheelchair On Speed control or If the wheelchair does not travel at full speed or does not respond
drives, but nonhazardous fault quickly enough, and battery condition is good, check speed control
movement is setting. If adjusting the speed control does not remedy the problem,
sluggish there may be a nonhazardous fault. Call your dealer.
Speed and response Reprogram to desired
have been performance
programmed slow
Battery gauge diagnostic guide
In addition to the battery gauge function, the battery gauge provides a diagnostic display. When a
system fault occurs, a set (from one to ten) of light bars will flash. Use the illustration below to di-
agnose the fault (the number represents the number of light bars flashing), then find the problem in
the Battery gauge diagnostic guide table that follows.
Battery gauge diagnostic guide table
BATTERY
INDICATOR SYSTEM
LIGHTS FAULT CHECK / ACTION
Red, yellow, & None Battery charged; Controller and electrical system OK.
green bars lit
Red & yellow
None Charge battery if possible; Controller and electrical system OK.
bars lit
Red bars only
None Low batteries; Controller and electrical system OK.
lit or slow flash Charge batteries.
Red, yellow,
Possible Joystick out of neutral—leave joystick in neutral while turning wheelchair power on. Operate
& green bars, joystick fault joystick to make sure it returns to neutral. Turn ON/OFF switch off and ON to reset.
ripple up &
down