Tilt problem

[fishinjunky]

I'm having a problem with tilt. Sometimes when I use tilt it stops an will only make a click sound when i hit the egg switch. You can hear the click sound in the video I attached.
It doesn't give a error code like it did when a cable was lose or pulled out. The tilt symbol shows that tilt is activated when I hit an hold the egg switch.
It starts working again after someone rocks the chair.

https://youtube.com/shorts/Eo2GZtVwTcw? ... q5Z4Jwy_hT

[Burgerman]

Could be:
Faulty actuator, faulty actuator connection, faulty actuator module, programming not set for adequate amps, badly routed cable that has failed internally. A multimeter and swapping a few cables around, and logic is your freind.

[slomobile]

It starts working again after someone rocks the chair.

I would use that fact and audibly tracking the noise source to start investigating.

What is electrically related to tilt, and moves when you rock the chair manually?

The position feedback component inside the actuator is one such thing. If it is based on a conductive track like a potentiometer, it is subject to wear. Wear would happen most around the tilt position you occupy most. Check if the problem also exists at non typical parts of the tilt range. If not, use those positions more often till you can get the actuator replaced. If pot wear is the problem, the click would be a relay disconnecting because the controller inside the actuator sensed an invalid position when the wiper passed over an open part of the track.

Limit(overtravel) switches could be at fault if the problem only occurs near the ends of actuator travel rather than the most occupied spots.

Connecting wires also move when the chair is rocked. Potentially breaking/making a contact.

[Flagmax]

I'm having a problem with tilt. Sometimes when I use tilt it stops an will only make a click sound when i hit the egg switch. You can hear the click sound in the video I attached.
It doesn't give a error code like it did when a cable was lose or pulled out. The tilt symbol shows that tilt is activated when I hit an hold the egg switch.
It starts working again after someone rocks the chair.

https://youtube.com/shorts/Eo2GZtVwTcw? ... q5Z4Jwy_hT

What powerchair is this? Does it have other functions besides tilt?

When it stops working with the egg switch, does it tilt if you use the Joystick?

I also have the Linx system and it does not click that loud when I activate tilt. Yours sounds like brake engaging/disengaging. Can you confirm what's clicking? But it could be the module relay clicking.

If you only have Tilt, then most likely the Power Module does the Tilt function and the egg switch is plugged in the REM-400 joystick. I have 4 functions so they used Helix-M610 6ch module on mine and it clicks quietly when a function is activated.

[Burgerman]

I might add, dont worry about slomobiles pots or position feedback complications. His experience is of permobils complicated seating system/feedback pots and encoders and stuff. As most chairs dont use any of that over complicated permobil ICS seating stuff.

All my chairs, with 5 or 6 functions have just 2 wires to each actuator. A plus and a minus... And thats it. No electronics inside. And only one of those actuators has an internal microswitch and no feedback pots etc. So its all super simple. Now I dont have a dynamic linx system. But pretty sure those are just the same.

And yes, the clicking I hear on your vid sounds like the motor brake which is odd.

[Flagmax]

Here is a service manual https://invacaredocs.com/assets/documen ... Manual.pdf

Dynamic Linx system also uses 2-wire actuators. They also have separate sensors to detect angles for inhibit/memory function. And maybe current sensing.

[Burgerman]

Current sensing on almost all modern systems in internal in the seating module. It is used to detect end of travel as it senses current rise. As the end of travel is reached. The microswitches just connect to inhibits. Usually only on tilt. Best binned if you ask me. Or disabled in programming.

[fishinjunky]

Thanks for the help everyone. We found the problem. It was the cable going from the seating module to the tilt actuator. The cable was getting crushed. I've had to replace this cable 5 times now over 5 years! The problem is wire management I'm unable to physically get in a position to direct someone to route the cables how I want them. So I'm relying on someone else's judgment on wire management and we all know how that goes

[Burgerman]

badly routed cable that has failed internally.

I always redo all this stuff myself or at least check it when new. Because...

[slomobile]

And yes, the clicking I hear on your vid sounds like the motor brake which is odd.

In hindsight, knowing that it was a bad actuator cable, what was the likely source of the clicking noise?
As I read Burgerman's comment I thought maybe it was a joystick spring not returning to center strongly enough, allowing it to drift in and out of the dead zone. If the programming was set to not allow seating adjustment while driving, that would account for both sound and movement anomalies. But I don't see how a bad cable causes such a loud click.

[fishinjunky]

badly routed cable that has failed internally.

I always redo all this stuff myself or at least check it when new. Because...

This is a must!!
The wire management in the Bounder chair is very poor.

[fishinjunky]

And yes, the clicking I hear on your vid sounds like the motor brake which is odd.

In hindsight, knowing that it was a bad actuator cable, what was the likely source of the clicking noise?
As I read Burgerman's comment I thought maybe it was a joystick spring not returning to center strongly enough, allowing it to drift in and out of the dead zone. If the programming was set to not allow seating adjustment while driving, that would account for both sound and movement anomalies. But I don't see how a bad cable causes such a loud click.

I think its the actuator Or the tilt relay. That makes the click sound. Both tilt an recline make a click when activated before the tilt an recline moves.
But the click is normal the tilt just wouldn't move after the click

[Burgerman]

There is no relay in most normal
seating systems. (maybe in permobils) Its a mosfet in all the ones I ever saw. And those are silent?

[rover220]

There is no relay in most normal
seating systems. (maybe in permobils) Its a mosfet in all the ones I ever saw. And those are silent?

Ism6 makes an obvious click when operating actuators.

[Burgerman]

I thought the seating modules were silent (mosfet) so after what you said I just tested that. And I can hear a click I think. Why havent I noticed that before?
But pretty quiet here. But I definitely hear the brakes! I am a bit deaf though.

This click in the video definitely isnt that. It sounds louder and actually rings a little just like the motor brakes or other large relay. Take a listen.

Vid. https://www.youtube.com/shorts/Eo2GZtVwTcw