Question about Invacare Pronto M51 Power Wheelchair

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I have a Invacare Pronto M51, the chair won't move. When I turn on the joystick, the wrench light flashes 9 times, stops, then flashes 9 times again. Can you tell me what that indicates?

The chair was plugged in for a couple of days in the garage. I noticed a bad burning odor in the garage and found it coming from the chair. I unplugged it and the odor went away in a couple of hours. Now the chair won't work. the joystick lights up when I turn it on, but it's the wrench symbol, It blinks 9 times, stops then blinks 9 more times. Do I need replacement batteries or perhaps something else?

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  • 278 Answers

A flash code of 9 indicates a communication fault. What this means is that there is a lack of communication between the joystick and the other electronic component, the controller module. In my experience, the usual culprit is that the charger plug makes bad contact inside the joystick housing causing it to heat up and burn. This can cause components inside the joystick to burn out. The other more common problem is that there is a break in the 4 wire harness going from the joystick down to the controller in the base. Sometimes it is just a matter of unplugging the connector, cleaning it, and pushing it back in. In other cases, the wire has been cut or broken along its length. Look for cuts along the black covering of the 4 wire harness (connecting cable)and twist and tape or splice and solder to repair the wires. These connecting harnesses are so inexpensive it is usually easier to replace, however a quick splice can get you going temporarily. If you smelled burning that would be an indication that the joystick assembly has burned out and I would replace that along with a new harness (connecting cable with a plug on each end) to the base electronic module.
The connecting cables have always been a weak link in this design and have had a history of failures over the years. For this reason I replace both the joystick assembly and connecting cable when servicing. Hope this helps.

Posted on Mar 22, 2014

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Posted on Jan 02, 2017

  • 175 Answers

SOURCE: won't move pronto m51

Three lights flashing on your chair indicate a left motor fault. Make sure that all of the connections inside the shroud are tight by physically testing them. If all of the connections are good, and the fuses are good, then it's time for a trip to an authorized repair facility. Here is a link to the M51 owners manual if you haven't one. Page 24 has the fault code guide.
http://www.invacare.com/doc_files/1125085.pdf

The controller monitors all of the functions on the chair, brakes, motors, joystick, charger etc. The three flash fault indicates an "open" circuit. Open, like a switch or blown fuse is open, or a wire is cut or burned in half, or a connector is unconnected, or partially connected. The latter is what you are hoping for. Wires burned in half is the usual cause for a motor fault, and with powerchairs, is usually the result of the chair getting stuck in or against something it can't get out of and the operator over-amping the motors. Motors do, just go bad sometimes, for no reason. Very rarerly, however.

You can also check the brushes on the motor too. There's two quarter-sized black plastic screw-plugs on the ends of the motor opposite each other. Unscrew them and examine the brushes. The springy coils should be springy. Overheating can cause them to be brittle, or even burned in two. Check the lench of the brush, the dark rectangular cube at the end of the springs. It should be curved and polished at the end, and a little over a half-inch long. If it is near a 1/4 inch, it needs replaced, or if there is any evidence of overheating, replace. Good luck.

Posted on Jul 09, 2009

  • 103 Answers

SOURCE: My Pronto M51 chair does not seem to be holding a

Have the batteries load tested. It sounds like the batteries need to be replaced.

Posted on Oct 26, 2009

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SOURCE: My dad has a mobility

Contact Roadrunner Mobility at 1-800-467-2668. They should be able to help you

Posted on Aug 17, 2010

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SOURCE: I have a 5 year old Pronto M51. When I plug the

Yep you got it right its the batteries replace them with U1 batteries, charge before use and you should be good to go Good Luck

Posted on Nov 06, 2010

wcdoc1953
  • 278 Answers

SOURCE: i have invacare pronto m51 with surestep the spjis

The 9 flash error code indicates a communications fault. The communication fault relates to the communication between the joystick and the control module. The joystick on the arm mount is connected to the control module in the base. When there is a break in the wiring of this wiring harness, also called a bus cable, a fault occurs. This trips the computer and the computer sends out a flash code to the joystick. Simply stated there is a broken or pinched wire between the joystick and controller. Look physically at the wire and check for cuts, breaks or pinches. The best short term repair is to repair the broken wire with solder and heat shrink or tape. You can also use **** splice connectors and tape. The best long term repair is to replace the harness with a part available from Invacare. The most definitive way to diagnose this problem is to read the fault log of the controller using a hand held programmer available to dealers and certified technicians. The number and type of fault codes logged in the controller is another indicator of which
component(s) has failed. Hope this helps.

Posted on Nov 20, 2010

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Related Questions:

1 Answer

When I turn my wheelchair on a service indicator light at bottom of joystick blinks 9 times. How do I fix this?


If: Battery indicator flashes the charge level is low
immediately after recharging.
--------------------------------------------------------------------------------------
Then it is a. Weak Batteries.
b. Charger malfunction.
c. Electrical malfunction
-------------------------------------------
Solution a.Replace batteries.
b. Replace charger. Contact Dealer/Invacare.
c. Contact Dealer/Invacare.


I got the above from the manual. The link is:
http://www.invacare.com/doc_files/1125085.pdf


Regards
Chellakumar

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1 Answer

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The problem is bad communication between the joystick and the conroller or power module. By replacing the jostick cables you will see if that fixes the problem. Check with your provider (where you got your chair) to see if they have an extra joystick cable or can loan you one from a chair that they might have. Now there are 2 cables one from the joystick to the base of the chair and one from the base to the controller either could be bad but try the one to the joystick first Hope this helps

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