Hi
I bought a Alco RS3 today to give the EZ App a try. I downloaded the app on my Iphone X . I put  the loco on the tracks and it said on my phone updating firmwear. I then paired the loco with the app and it runs great. Only problem is I cant get the sounds going!  I tried increasing it on the app and on the phone itself but nothing. What am I doing wrong?  Thanks
MRC Prodigy Advanced2
p.s. it doesnt run on my DC track at all
Update- I was able to use the app on my ipad and it ran/made sound in both DCC and Dc. Now to get it to sound on mt iphone xs
My ipad has bluetooth 4. My iphone newer bluetooth 5. Is that a problem?

I have a set of 5 Bachmann heavyweight HO passenger cars.  One of them is causing shorts on my layout. Is there a known fix for this? 

I have a GE 70 ton switcher DCC on board that quit running. The lights work from front to back and I tried re-setting to factory setting and address 03 is now input as the lights work with this input value.  But it won't move at all.  Can I buy a replacement DCC board?  is there a better/upgraded one avail?
Thanks
Bob

Update_ I got it to run on a DC track and ran it 10 min forward and 10 in reverse.  Then I tied it in DCC mode again; it made some noise but ran. Let it go for about 10 in each direction and now running smoothly.
Odd - because wheels and track were clean.

Update - quit running after 15 min pullin a couple of cars. May need a new decoder