https://pinside.com/pinball/forum/topic/vids-guide-to-upgradingrebuilding-flippers

Vid1900 wrote this up just for you.

Helps identify parts and things to check and then fix.

LTG : )™

If you turn the game off does the flipper fall back into position, or is it mechanically getting stuck?

If it's a mechanical issue see Vid's guide on rebuilding flippers. It's a sticky in one of the technical forums.

_{Post edited by terryb: I type slow.}

See if the coil sleeve for the flipper is broken. If so it's about as easy a fix as you can hope for.

https://pinside.com/pinball/forum/topic/how-does-one-remove-a-coil-sleeve

If the flipper sticks up only when the game is on, then it's a coil issue - you'd best be advised to replace the coil and diodes, since it's likely that the coil is a bit burnt at this point.

If it sticks up whether or not the game is on, then there's a problem with the flipper plunger or sleeve. The sleeve may be cracked or the plunger may be mushroomed out and getting stuck. If that's the case, you need only replace the plunger and sleeve, or if you're feeling enterprising and can't wait for a replacement, you can use a dremel to shave down the mushrooming on the plunger.

Have you actually taken a look underneath the playfield yet?

That suggestion and many helpful others were in the other thread where you asked us about this issue.

It's not just gonna fix itself, and it's stupid to just start ordering parts.

Investigate the problem and listen to the suggestions you've already gotten in both threads.

In other words...you aren't gonna fix this without opening your pinball machine.

This response doesn't make a lot of sense to me.

If the flipper sticks up when the game is off it can be any number of issues - coil stop, spring, something loose, or yes a burnt coil.

If it sticks up when it's on, the coil is the last thing I'd suspect. More likely it's a switch issue or transistor issue.

You don't even have to "take it apart."

Just LOOK AT IT.

Seriously. Please. I'm begging you. Just open the game and look at it. That's the first step. It's always the first step. You've had this problem for days and you've just kept playing the game and making posts here.

This could be as simple as a loose screw and a misaligned coil stop. Why haven't you looked at it yet? Why are you doing this to me?!?!?!

(look at it)

I'd manually move the bad one by hand and observe. Compare it to the working flipper. Does it have the required up/down play at the bushing? If you don't see what is binding, then take it apart. AND READ VIDS guide above.

Good luck.