Home Forums General Discussion Technical Questions Otis 211 button acknowledgment light not canceling

I've never seen that on mine. Some 211s don't seem to support the tool but on those it just does the self test and says something. When it works it says self test and MECS mode I think, then you can press the Module button and get the Module menu.

Service tool communication depends on the age of the 211. Older units aren't service tool capable without a baseline upgrade.

Thanks for the responses. Much appreciated.

A little update. Yesterday I got the tool working on the 211 with the problem. Tried the M-1-5-1 ram reset with no change. Was able to do as Pieman suggested and check the output for serial address 34 bit 1, 1st floor button, and both input and output were off, light still on. I pushed the button and checked the SVT and then the output was on. Turned it off with tool as suggested and no luck. Still lite. Also did a eprom self test with the tool and nothing found wrong. Spent a bit more time trying to figure out the tool, the manual I was able to attain has differences to what the tool is showing on the menu tree. This job is Version AP430985AAA (2006). Also still have the FLPR problem. It won't drop out for car lights to turn on.
Just wanted to let all who were kind enough to give me suggestions how things are going.
Thanks again.

How old are the controllers ? When that happens it usually means software on the board is incompatible with the service tool . You need to upgrade the baseline software to a newer version . I forget what they are up to now ...think ending in AAG ? Be aware that even once you change the chip there are usually a couple of parameters that need changing . Haven't had to do one for a while but last one I did I had a regional guy talk me through the changes over the phone .

Oops , sorry ..never saw the second page ! Thought you were still having problems getting the tool to work. I don't suppose one of the other 211's you look after are same amount of floors and entrances etc ? If so maybe swap out the main board in the controller just to be absolutely certain its not a problem with the wiring or the KEB board .

You should probably contact the seller. The tool should give you a menu shortly after you plug it in.

Make sure you are plugging the correct plug, there are 2 on the board.

As for you button light problem, have you checked to make sure you don't have a grounded wire form the button?

Also if you have a service tool plugged in and are in a test mode, all of the buttons will stay lit.

Thanks guys. This is a duplex so I could swap main boards on a Saturday Pieman. Never cared about swapping stuff on relay logic or early solid state jobs but i get a bit anxious with the newer stuff!

I am plugged in the right port. Wasn't the first go round though. And as for a grounded wire, checked thoroughly for that and even used a different wiring harness with the same results. Plug P2 (1st floor car button) from the KEB board is the only one staying lite and I did replace the board with a new one right from UNITEC. Again, thanks for all the suggestions.

freddie, we have swapped main boards on a few jobs, i puckered the very first one, but after we did it , it was a breeze. next few times, it was easy money, as long as everything is exact we had it done in less then 30 min. but then again, you never know good luck

Vatorgator is right , straight forward swap out usually.it sounds like you have the older 211 with the piggy back board ? Just swap the base board , if the fault moves its the board . If not swap out the smaller board , if it moves its that board or or in the software . If you swap both and it doesn't move its a wiring fault , possible short . Providing the KEB board you pit on wasn't faulty also . Chased my tail all over Christmas by replacing a tape head reader board on a 211 with a new one that also had the same intermittent fault as the old one . Deove me crazy .

If it's a older service tool, it will not work on the newer software. Not sure where the software cut off is at.

If it's a older service tool, it will not work on the newer software. Not sure where the software cut off is at.

The last 3 numbers on the back of the service tool should be AK1. And that should work.

Long overdue update. First thanks to all for the help and suggestions. After using the service tool to do all that was suggested and learning some of it along the way, I still couldn't get the button light to cancel and the light protection relay to drop out allowing the cab lights to work. Then I tried something I should have tried earlier on.

We have a few Otis LRV duplex jobs where after doing regular maintenance and turning on the power, one car will lock up and hose up everything. Solution, turn off both cars, and reboot 1 then 2. Always works. So, I tried that on the 211's. Halo lights out, light protection back to normal. All good. Played with the service tool to turn outputs off and on and all worked fine.

Since then we've had the cab lights not turn on twice, building manager reset for us, but button light problem has not returned. On these new fangled fancy elevators, I don't question success. So, again thanks to all.

On the plus side you will probably need the ak1 tool at some point and now you have familiarized yourself with it. And yep , sometimes a result is a result no matter how you reach it .