SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Troubleshooting - Battery Charger

SYMPTOM

PROBABLE CAUSE

SOLUTIONS

 

 

 

 

Charger not plugged into outlet, or

Make sure the charger is plugged into the outlet

 

disconnected from wiring harness on

and check the wiring on the wheelchair.

 

wheelchair.

 

 

 

 

 

No AC power at outlet.

Check for AC power with digital volt meter.

 

 

 

No LED’s on

Damaged power cord.

Check for damage on the power cord, replace if

 

damaged or send in for repair.

Charger

 

 

 

 

Charger LED’s burnt out.

Send charger to Invacare for repair.

 

 

 

 

Charger may have internal fuse that is

Remove charger cover and check for fuses. If fuses

 

blown.

are present, Ohm out fuses and replace if

 

 

necessary. Refer to Electro-Mechanical Parking

 

 

Brake Test on page 29.

 

 

 

 

Tripped breaker in wiring harness, or

Check battery wiring harness breaker on the

 

charger.

wheelchair. If the breaker is tripped, determine the

 

 

cause and correct it prior to resetting the breaker.

 

 

 

 

Charger not plugged into outlet.

Make sure charger is plugged into the outlet.

 

 

 

Batteries won’t

No AC power at the outlet.

Check for AC power with a digital volt meter.

 

 

Charger power cord may be

Check for damage and replace if necessary, or

charge.

damaged, or the connector may be

send in for repair.

 

 

damaged.

 

 

 

 

 

Charger may have internal damage.

Charge batteries with known good charger.

 

 

 

 

Battery voltage too low for charger to

Replace batteries.

 

start charging cycle.

 

 

 

 

 

Consumer not charging batteries long

Instruct consumer to charge for 8-10 hours

Batteries have

enough.

minimum.

short driving range

 

 

Batteries may be weak.

Perform load test or check “Battery Quality Menu”

during a single

 

with the programmer. Refer to Field Load Test on

charge. Battery

 

 

page 27.

Gauge falls off

 

 

 

faster than normal.

Check programming settings.

Torque setting and power level setting may be too

 

 

high.

 

 

 

At’m and At’m QT

26

Part No. 1125078

Page 26
Image 26
Invacare 1125078 service manual Troubleshooting Battery Charger