Invacare M91 Owners Manual - Page 28

Troubleshooting Guide

Get Invacare M91 PDF manuals and user guides View all Invacare M91 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 28 highlights

SECTION 4-SAFETY INSPECTION/TROUBLESHOOTING ❑ Inspect and clean the stability lock gears. Replace if worn. ❑ Clean upholstery and armrests. ❑ Inspect charger AC power cord for damage. Replace if necessary. ❑ Check that wiring is routed and secured properly to ensure that wiring does NOT become entangled and damaged. ❑ Inspect electrical components for signs of corrosion. Replace if corroded or damaged. ❑ Check that all labels are present and legible. Replace if necessary. Troubleshooting Guide SYMPTOM Batteries draw excessive current when charging. PROBABLE CAUSE Battery failure. Battery indicator flashes the charge level is low IMMEDIATELY after recharge. Electrical malfunction. Battery failure. Malfunctioning battery charger. Battery indicator flashes the charge level is low too soon after being recharged. Motor "chatters" or runs irregular. Only one drive wheel turns. Joystick erratic or does not respond as desired. Electrical malfunction Batteries not charged. Weak batteries Electrical malfunction. Electrical malfunction. One motor lock is disengaged. Damaged motor coupling. Electrical malfunction. Controller programmed improperly. Wheelchair does not respond to commands. Power indicator off - even after recharging. Poor battery terminal connection. Electrical malfunction. SOLUTIONS Have batteries checked for shorted cell. Replace if necessary. Contact Dealer/Invacare for service. Check batteries for shorted cell. Replace if necessary. Contact Dealer/Invacare for service. Contact Dealer/Invacare for service. Have charger checked. Replace batteries if necessary. Contact Dealer/ Invacare for service. Contact Dealer/Invacare for service. Contact Dealer/Invacare for service. Engage motor lock. Contact Dealer/Invacare for service. Contact Dealer/Invacare for service. Reprogram controller (Refer to MK5™EX™or MK5 NX™electronics owner's manual supplied with wheelchair). Have terminals cleaned. Contact Dealer/Invacare for service. NOTE: For additional troubleshooting information and explanation of error codes, refer to the Electronics Manual supplied with each wheelchair. Pronto® M91™ with SureStep® 28 Part No 1141450

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING
Pronto® M91™ with SureStep®
28
Part No 1141450
❑
Inspect and clean the stability lock gears. Replace if worn.
❑
Clean upholstery and armrests.
❑
Inspect charger AC power cord for damage. Replace if necessary.
❑
Check that wiring is routed and secured properly to ensure that wiring does NOT
become entangled and damaged.
❑
Inspect electrical components for signs of corrosion. Replace if corroded or damaged.
❑
Check that all labels are present and legible. Replace if necessary.
Troubleshooting Guide
NOTE: For additional troubleshooting information and explanation of error codes, refer to the
Electronics Manual supplied with each wheelchair.
SYMPTOM
PROBABLE CAUSE
SOLUTIONS
Batteries draw excessive
current when charging.
Battery failure.
Electrical malfunction.
Have batteries checked for shorted cell. Replace if
necessary.
Contact Dealer/Invacare for service.
Battery indicator flashes
the charge level is low -
IMMEDIATELY after
recharge.
Battery failure.
Malfunctioning battery
charger.
Electrical malfunction
Check batteries for shorted cell. Replace if
necessary.
Contact Dealer/Invacare for service.
Contact Dealer/Invacare for service.
Battery indicator flashes
the charge level is low -
too soon after being
recharged.
Batteries not charged.
Weak batteries
Have charger checked.
Replace batteries if necessary. Contact Dealer/
Invacare for service.
Motor “chatters” or runs
irregular.
Electrical malfunction.
Contact Dealer/Invacare for service.
Only one drive wheel
turns.
Electrical malfunction.
One motor lock is disen-
gaged.
Contact Dealer/Invacare for service.
Engage motor lock.
Joystick erratic or does
not respond as desired.
Damaged motor coupling.
Electrical malfunction.
Controller programmed
improperly.
Contact Dealer/Invacare for service.
Contact Dealer/Invacare for service.
Reprogram controller (Refer to MK
5
™EX™or
MK
5
NX™electronics owner’s manual supplied
with wheelchair).
Wheelchair does not
respond to commands.
Poor battery terminal
connection.
Have terminals cleaned.
Power indicator off - even
after recharging.
Electrical malfunction.
Contact Dealer/Invacare for service.