Compass Sport_SG_REVA_101014
8
SCENARIO 1: Press the on/off button and the LED array does not light up.
Before attempting to troubleshoot the power chair, make sure all connectors are connected and seated properly.
Make sure that the batteries are connected properly
and
fully-charged
. Refer to the wiring diagrams on pages
12 and 13 for the correct wiring. If the batteries are not fully charged or connected properly, then voltage
measurements may produce faulty readings. Measure the voltage across the rear battery negative (black)
terminal and the front battery positive (red) terminal to get battery voltage. If the batteries will not charge, go to
“Scenario 2: Batteries will not charge.”
1. Check the circuit breaker.
•
If it is tripped – Reset it.
•
Not tripped – Go to the next step.
•
Tripped but does not reset – Remove the seat and front battery box cover. Go to step 12.
2. Measure voltage across pin 1 and pin 2 on the control unit (Joystick) charging socket.
•
0VDC – Go to the next step.
•
25VDC or (battery voltage) – Replace the control unit.
Prevent damage to the Joystick. Be careful when inserting the meter leads into the charging
socket. Do not allow the meter leads to touch each other, which will cause a short.
3. Disconnect the bus cable from the control unit (Joystick).
4. Measure voltage across pin 1 (-) and pin 4 (+) on the bus cable.
•
0VDC – Go to the next step.
•
25VDC or (battery voltage) – Replace the control unit (Joystick).
5. Remove the seat.
6. Remove the rear battery box cover.
7. Disconnect the bus cable from the power module.
8. Measure voltage across pin 1 (-) and pin 4 (+) on the power module.
•
0VDC – Go to the next step.
•
25VDC or (battery voltage) – Replace bus cable.
Prevent damage to the (LiNX) power module. Be careful when touching the leads on the
power module. Do not allow the meter leads to touch each other, which will cause a short.
9. Disconnect the power harness from the power module.
10. Measure voltage across the pin 1 (+) and pin 2 (-) on the power harness.
•
0VDC – Go to the next step.
•
25VDC or (battery voltage) – Replace the power module.
Before attempting to measure resistance, make sure there is no power to the circuit. Unplug
the front and rear battery harnesses from the power harness
11. Measure Resistance across the terminals on the circuit breaker.
•
Less than 10 ohms – Go to the next step.
•
Open – Replace the circuit breaker.
1 2
2 1
3
