PS-2 Engine 20-3080-1 suffering from mad bell disease - fixed

Did you try a feature or factory reset of the locomotive.

I did John.  I used the Z-4000 and got the two whistle toots as confirmation.

I haven't yet, but I'm going down now to try another PS2 engine and get the same result.

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OK, so I went down and tried an MTH diesel and didn't have the bell problem.

Next, I tried a different PS2 tender and got the bell.

 The problem must be in the locomotive.  Perhaps I pinched a wire or something with I reassembled the engine.  I'm going to pull the shell and will post the results.

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I pulled the locomotive shell, disconnecting the wiring that went to the smoke and marker lights.  I placed the chassis back on the track, connected the tender, everything was fine.  

I connected the smoke wiring to the chassis connector leaving the shell off everything fine.

I touched the shell to the chassis everything fine.

I placed the shell on the chassis, no screws, the bell started up again. 

Fixed.  It was a pinched wire going to the firebox light.

Cool.  PS/2 doesn't like anything to frame ground, so that makes sense.

maker,

    I loved the title of your thread, mad bell disease, that alone got me to punch up the thread, glad you found your problem!

PCRR/Dave

It is weird that there wasn't a problem with the MTH Z-4000 but there was with the Lionel Brick-Legacy-TPC400.  Crisis over so whatever the problem, its gone now.

I think it was the firebox light, but you never know.  I secured that wiring, the old sticky wiring holders were loose, but I could have moved something else.