SECTION
SYMPTOM | PROBABLE CAUSE | SOLUTIONS |
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NEUTRAL TESTING displays. | The joystick neutral test has | Release the joystick and try to get the |
| failed (Error code E18). | joystick back into the |
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| position. |
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BAD JOYSTICK CAL VALUES | The joystick calibration values | Recalibrate the joystick (joystick throw |
displays and the wheelchair does not | are outside of the expected | procedure). |
range (Error code E19). |
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drive. |
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SPM NOT CONNECTED | The MPJ or Display module is | Check the connections between the |
| not communicating with the | joystick or display and the controller. |
| control module (Error code | Turn the power off and then back on. |
| E200). | Replace the controller if necessary. |
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SPM Communications Fault | The controller has determined a | Turn the wheelchair off and back on. |
displays and the wheelchair drives | fault during a previous |
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process (Error code E41). |
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slowly. |
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| The Proportional or Digital | This is normal behavior. |
ATTENDANT ACTIVE and | Attendant control is active and |
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displays. | can be used to drive the chair |
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| (Error code W05). |
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Batteries draw excessive current | Battery failure. | Have batteries checked for shorted cell. |
when charging. |
| Replace if necessary. |
| Electrical malfunction. | Contact Dealer/Invacare for service. |
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Battery indicator flashes the charge | Battery failure. | Check batteries for shorted cell. |
level is low - immediately after |
| Replace if necessary. |
recharge. |
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| Malfunctioning battery charger. | Contact Dealer/Invacare for Service. |
| Electrical malfunction. | Contact Dealer/Invacare for Service. |
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Battery indicator flashes the charge | Batteries not charged. | Have charger checked. |
level is low - too soon after being |
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recharged. | Weak batteries. | Replace batteries if necessary. Refer to |
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| Replacing Batteries on page 53. |
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Motor “chatters” or runs irregular. | Electrical malfunction. | Contact Dealer/Invacare for Service. |
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Joystick erratic or does not respond | Damaged motor coupling. | Contact Dealer/Invacare for Service. |
as desired. |
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| Electrical malfunction. | Contact Dealer/Invacare for Service. |
| Controller programmed | Contact Dealer/Invacare to have |
| improperly. | controller reprogrammed. |
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Wheelchair does not respond to | Poor battery terminal | Have terminals cleaned. |
commands. | connection. |
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Power indicator off - even after | Electrical malfunction. | Contact Dealer/Invacare for Service. |
recharging. |
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Part No 1154294 | 31 | TDX® SI, TDX |
