My friend just acquired a fire pinball and the flippers and slingshots do not work. We also noticed the diagnostics led light on the board flashing. We did double check and re plugged in all the wires leading to the flippers and still nothing. Any ideas? Thanks for the help.

So this sounds more like an issue with the power going to the coils rather then the wiring going to the cpu board? Could it be an issue with the flipper power board or the regular power supply board? It was working for one game and playing an immediate game after that, the flippers and the slings did not work and continue to not work.

The other question I have is the lower slingshots and the flippers not working related? Are they on the same power? I know either both work or both don't so I am just trying to figure out a relation to it all.

Ok. Found a blown fuse under the playfield like you guys said to check it is the one on the back right side of the playfield. Changed the fuse and got it working.....for about 5 minutes. During the game the flippers and all slingshots stopped working. So something is blowing that fuse. Any ideas? We did use a dmm and power is getting to all flippers and slings. Thanks in advance for the continued help!

Could this problem with the flippers and slingshots not working be caused by a bad k1 relay? Does anyone think that should be replaced? Any way to test it to see if the k1 on the board is good or bad?

I asked about the relay based on what it looks like he tried already. So far he:

- replaced q68 tips
- checked fuses under playfield and on flipper power board
- Did test with a DMM the connectivity to the flippers and slings
- Did ground out the connection with a DMM and the flipper and sling coils did fire.

I was over his house trying to help him and when it did work briefly both the slings and flippers worked. When it stopped working both did not work. So we think the problem is related. What is on the cpu board that could be malfunctioning that effects both the slings and flippers?

Thanks wayout440! We will play around with it this weekend and post what we find out!