I have a Seawitch that I just messed up something on the right flipper.

Here is the back story.

1. Noticed the game had the wrong flipper coils installed from previous owner. Way to strong.
2. Ordered in correct coils.
3. installed correct coils.
4. Left one is working awesome.
5. Right flipper blew the f4 fuse on first push of the flipper button.
6. Ah ha. Previous owner had put the coil in upside down, so when I put the new one in correctly that made lugs 1 and 3 reversed. This caused me to wire the coil backwards.
7. Swapped wires on lugs 1 and 3.
8. Game plays great for one game.
9. Now here is where things get weird. On my second game the right flipper just slowly keeps getting weaker and weaker until it just gives up.
10. So now if I start a game and pop the flipper button really fast, it will try to move. but if I press the button normally both right flippers just sit there.

I have cleaned and adjusted all switch contacts on flipper and button so I do not believe the problem is with those.
I am guessing I must have messed up something on the coil (Diodes seem ok), or the board some place.
Anyone else come across the crazy behavior or know what might cause it? (besides me. lol)

I would answer no to that. And I will eventually get to things like that.
The game has been flipping just fine for a long time.
This issue was certainly caused by the new coil install.
I have not messed with anything in the backbox yet.

OK guys. Finally had time to work on this a bit. Still no luck
I have tried replacing the diodes on the coil. No help.
Put in an entire new coil. No help.
Messed with the end of stroke switch even though I never messed with it from when the game worked fine. No help.
Checked solder joints even though the board was working perfectly before coil change. No help.

It just makes no sense. I have done lots of flipper repair in my days but I have never seen a flipper start off working fine and then slowly during the course of a game just get weaker and weaker until it just barely moves now. Upper right flipper does not even try and move anymore.

Any ideas are welcome. Very frustrating because the game worked great with the wrong coil. Should have left well enough alone but it was just flipping the ball way to hard.

Ok. More info.
I was able to get my hands on a new remake solenoid driver board that has diagnostic LEDs.
It has got to be a wiring issue with the coil so I took photos to see if anyone can help me out with what may be wrong.
With the new board I can see that everything is fine when that game turned on in attract mode.
But once a game is started the Q15 LED will lock on. The Flipper will flip once when Flipper button is pressed then stop. I powered it off quickly so as to not harm the new board.
In the photos below I have 3 wires on the top lug, one on the middle and two on the lower.
I swear this is how the old coil was wired but maybe I missed something.

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Thanks that is helpful. Pretty sure that is how mine are.
I now know that q15 should always be on so that is not the issue.
After messing around with a meter, I compared the left coil in attract mode with the broken right coil.
The left coil has a steady 19 volts on all three lugs.
The right coil only has 19 volts on the center lug and 2.13 on the outer two.
I am now betting there is something wrong with the lug that has 3 wires attached. It is very hard to twist 3 wires together and get on the lug correctly and I am now betting I have a weak connection. I will clip and rewire after dinner and report back.
Thanks for all the help.

Just took all wires off the coil and EOS and made sure they were all soldered on nicely.
Did not help at all
Just checked ohms with power off on both coils. Both left and right coils are the same with 3.2 ohms on one lug and .05 on opposite lug.
Have not tested with EOS open yet
**Edit** tested exactly the same with EOS open

May have just tracked down a big issue
This is my right Flipper switch stack.
Is there a good source for these?
C59870AF-AE4F-4279-B9F1-E1E46A161B7C (resized).jpeg

Thanks. I remember the conversation now back when I forgot to order these. lol
We can build our own or use this high current plug and play switch stack from PBR as well. GTB-B17838+
Both of mine are crappy so hopefully this will fix my issue.

Awesome. Looks like the 03-7811 is just $3.36 a piece from PBL.
As they are normally closed I assume you just bend them open with a leaf adjusting tool and are good to go?
There is even a chance I may have some EOS switch stacks in my parts bins.

Ok.
I do have a couple of these EOS switches left over from an old Flipper rebuild kit.
Should they be good enough to try?

6BCA57C4-1DBA-4F05-B05C-27C6EA7EF647 (resized).jpeg

No.
The Williams EOS part that Slochar recommended 03-7811 are a normally closed switch.
I was just asking if he made them normally open to use as Flipper button stacks

My actual flipper button switch. (The photo in post#16)
Nothing on the coils.

Thanks.
I will then stick with the Pinball resource Gottlieb high current replacements for my flipper buttons.
They are closed until Tuesday because of the holiday so I have to wait a bit until I can order anyway.

First of all, thanks for helping. I agree with all the EOS info you have as well.
And it does appear with no depth to the photo that the set screw is hitting the leaf switch, it is well above though and does not touch it at all.
Where I do dissagree with you is my coil direction. If you check Vids ultimate guide to flippers you will find these two examples.
But again I do appreciate any and all ideas.

0832D6C7-4BA0-46A0-9D4B-755B1FB585A0 (resized).png

3814B54C-F9EF-4580-A007-C1EA1DB628C1 (resized).png

Yep

I agree, they of course work just fine either way.
Just that Vid. Pinsides resident expert, has a very strong opinion about this. lol.
And for over 30 years I have been installing my coils lugs away from the coil stops.

Correct.
Pinball Resource has been closed for the holiday.
They open again today.
So I will be about a week away from getting my parts.
Just checked and I have my order confirmation already

Got the new Flipper button switches soldered in place today.
Working like a champ.
Must have just been a crazy coincidence that the switch blades quit at the same time the coil was changed out.
Crazy pinball gods messing with me I guess.