Invacare AVIVA RX Series, Service Manual

Page: 20 / 68

Invacare® AVIVA™ RX series
Problem Other symptoms Possible cause Solution
Documentation
Motors stop and start
again
None
Voltage decline Stop driving and allow
electronics to cool
down.
Motor runs but loses
power
None
High motor load
allows power module
to lower voltage Stop driving and allow
electronics to cool
down.
None
High motor load
allows power module
to lower voltage Leave mobility device
switched on and
let power module
operate. Charge
batteries overnight
with electronics
turned on.
None Circuit breaker
switched off Check cabling and
switch on circuit
breaker. See 6.12.6 Checking
Cables, page 62 and
user manual.
None Motor defective Measure internal
resistance of motor,
replace motor if
defective. See 5.1 Testing
Motor, page 15
and 6.9.1 Replacing
Motor-Gearbox Unit,
page 37
.
Motors stop and do
not start again
None
Power module
defective Replace power
module See 6.11.1 Replacing
Power Module, page
54
.
Motors lose power
while driving
None
Bad connections Turn off electronics,
wait 10 seconds, turn
on electronics. Check
all cabling. See 6.12.6 Checking
Cables, page 62 .
Clutch(es) defective Replace clutch. See 6.9.1 Replacing
Motor-Gearbox Unit,
page 37
.
Bearing defective Replace motor. See 6.9.1 Replacing
Motor-Gearbox Unit,
page 37
.
Motor judders or runs
irregularly, or only
one motor runs
None
Collector defective Measure internal
resistance of motor,
replace motor if
defective. See 5.1 Testing
Motor, page 15
and 6.9.1 Replacing
Motor-Gearbox Unit,
page 37
.
Bad connections Check all cabling. See 6.12.6 Checking
Cables, page 62 .
Circuit breaker
switched off Check cabling and
switch on circuit
breaker. See 6.12.6 Checking
Cables, page 62 and
user manual.
Batteries defective Replace batteries. See 6.12 Batteries,
page 58 .
Cabling to power
module or remote
defective Check cabling. See 6.12.6 Checking
Cables, page 62 .
None
Power module
defective Replace power
module. See 6.11.1 Replacing
Power Module, page
54
.
Motors do not run
Corroded contacts Contacts defective Check cabling, replace
if necessary. See 6.12.6 Checking
Cables, page 62 .
20 1654647-B