Invacare Twister Service Manual page 169

Twister / Twister Junior
18.4.3 Check the power supply from the power module to the lighting module 24V
to the lighting / actuator module
•
Remove the BUS plug from the connecting cable to the lighting
module 24 * 12V, or to the lighting / actuator module
•
Measure voltage U present at the power supply contacts (power
module plug). It must amount to at least 19 V.
Caution:
Do not bridge contacts. Danger of short-circuit!
Fault Cause
No voltage at Fuse in power module tripped.
contacts?
BUS cable defective.
Power module defective.
Power supply to power module
interrupted.
Voltage under
19V? Battery fully discharged.
Issued: 21.01.02
Service Manual
Remedy
Interrupt testing and resume testing a
few seconds later.
Test / replace BUS cable.
Test / replace power module.
Check power supply.
Check master fuse.
Pre-charge battery.
Replace battery.
Page 169
12V, or
BUS
U
Chapt.
Chapt.20
Chapt.
18.3
Chapt.14
Chapt.14
Chapt.
14.1
Chapt.14