Charger Fault Diagnosis - Invacare TDX SP2 Service Manual

Problem
Gearbox loses oil
Irregular running
Batteries not being
charged
Short charging period
Mobility device runs
too slowly

7.3 Charger fault diagnosis

Symptom
No LEDs illuminating on charger
1532486-L
Other symptoms Possible cause
None
Sealing ring on drive
shaft defective
None
Drive shaft movable or
bent
None
Fuse burnt out, cable
defective
Batteries defective
LEDs blinking on Charger defective
charger
None
One of the batteries
could be defective
None
Remote defective
Batteries defective
Possible cause
Charger not connected to mains supply
No mains supply
Defective mains supply cable
LEDs are burnt out
An internal fuse might be burnt out
Documentation
Solution
Replace gearbox if See 6.4.7 Replacing
sealing ring defective motor/gearbox
unit, page 23 and
6.4.4 Replacing
motor/gearbox clutch,
page 22.
Check carbon brushes See6.4.7 Replacing
for oil wetting, replace motor/gearbox
motor if brushes wet unit, page 23 and
6.4.4 Replacing
motor/gearbox clutch,
page 22 and 6.4.5
Replacing carbon
brushes, page 22.
Check drive shaft, See 6.4.7 Replacing
replace gearbox, if motor/gearbox
defective unit, page 23 and
6.4.4 Replacing
motor/gearbox clutch,
page 22.
Check cabling and See 6.7.15 Checking
replace fuse cable, page 38 and
6.7.13 Checking and
replacing main fuse,
page 37.
Replace batteries 6.7.9 Replacing
batteries/replacing
battery cables, page
35 and 6.7.6 Replacing
batteries, page 33.
Replace charger See charger user
manual.
Replace batteries See 6.7.9 Replacing
batteries/replacing
battery cables, page
35 and 6.7.6 Replacing
batteries, page 33.
Replace remote See 6.7.1 Replacing
power module, page 31.
Replace batteries See 6.7.9 Replacing
batteries/replacing
battery cables, page
35 and6.7.6 Replacing
batteries, page 33.
Solution
Make sure that charger has been
plugged in
Check mains supply with voltmeter
Check mains supply cable. Replace
damaged cables or send charger to
Invacare® Service for repair
Send charger to Invacare® Service for
repair
Send charger to Invacare® Service for
repair
Troubleshooting
45