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1 red + 5 green is left parking brake fault. This is a pretty generic code and can be something as simple as the brake/clutch lever is in free-wheel, or it can mean something more significantly wrong, depending on how it is wired in this model. (We don't work with Prontos a lot here.)
3 blinks is a right motor fault on a Pronto M51. Check that the motor plug has not come unplugged from the main control box or that any of the wires have been broken, cut or pulled out of the right motor.
This is a common problem with the M91 when the motors are more than several years old.
An error code of 4 flashes indicates a right motor fault. The right motor could have a short or open circuit, or a bad connection.
Check the right motor, connections and motor cable visually and with a voltmeter at the connector. Look for cuts, nicks and breaks in the wiring and for grease oozing out of the gearbox. Flip the seat back and remove the top cover. Disconnect the black square right motor plug and check the resistance across the red and black motor wires using a digital volt meter. 0 to 1.6 ohms is OK, anything out of this range is suspect.
If the motors are more than 3 years old, you should consider replacing the motor/brake/gearboxes as a pair, left and right. The motor/brake is about $650 with the motor/ brake/ gearbox assembly about $1,000 per side. Labor is 2 to 3 hours total. I usually replace the brake/motor/gearbox as a complete assembly to avoid future problems. Hope this helps.
First thing you must know is that the error codes are reversed on Pronto chairs with SPJ+ joysticks.
Only one year the M41 was made that the codes were correct. From approximately April 2008 to May 2009 was the only time a left error code ment left motor and a right code ment a right motor. Same for brake codes.
Brakes codes happen when the brake is out of gear, unplugged from the control brain or wire cut. Also from internal coil damage. Unless it's a wire you can reconnect you cannot fix the brake.
claxtonbrent That is the error code for a bad right brake and it will have to be replaced. There is no quick fix for this problem. It requires a new brake and I'm not sure if you can replace just the brake Usually when I get this and Medicare is paying for the repair I have to order a right motor/gearbox assembly. you can contact Invacare @ 1-800-333-6900 ask for M51 tech support and ask if you can replace just the brake Hope this helps
With the M91 the click you are hearing is the electric brake solenoid engaging and disengaging the electro mechanical brake. The display blinking probably indicates a brake solenoid fault code and right or left motor. Try working both brake levers back and forth listening for and feeling for smooth action. If the levers are bent and the brakes are not working a motor replacement is necessary. If you can identify the fault flash code you can determine which brake or motor is the culprit and use a DVM to verify the component failure.
The controller puts out fault codes though the LEDs. Count them and then look in the operators manual for likely causes. In my experience it is the electronic brakes that fail on these units and they are costly.
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