Invacare M91R Owners Manual - Page 111
TROUBLESHOOTING, Part No 1143153, Invacare® Pronto® M91™
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SYMPTOM Battery indicator flashes the charge level is low - immediately after recharge. Battery indicator flashes the charge level is low - too soon after being recharged. PROBABLE CAUSE Battery failure. Malfunctioning battery charger. Electrical malfunction. Batteries not charged. Weak batteries. Motor "chatters" or runs irregular. Joystick erratic or does not respond as desired. Motor/gearbox malfunction. Damaged motor coupling. Electrical malfunction. Wheelchair does not respond to commands. Controller programmed improperly. Electrical malfunction. 9 TROUBLESHOOTING SOLUTIONS 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. Refer to Replacing the Batteries and/or Battery Cables on page 90. Stop use of Wheelchair. Contact Dealer/Invacare for Service. Contact Dealer/Invacare for Service. Contact Dealer/Invacare for Service. Contact Dealer/Invacare to have controller reprogrammed. Contact Dealer/Invacare for Service. Part No 1143153 111 Invacare® Pronto® M91™