Invacare AVIVA RX Series Service Manual page 20

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