I have three HM7000 decoders and I’ve had various issues with them all, uncontrollable locos, unable to control from DCC or sometimes vice versa, although at times they’ve worked perfectly. I have now unlinked and deleted them from the app and they were working fine using my Elite and Railmaster, which after loading the sound function is all I require. However, they now are uncontrollable as in when power is applied they race off at speed and I have to stop them using the emergency stop.
I’ve run a few tests with one of them and this is what I found, the loco is a loco drive Hornby B17 and the decoder is fitted in the tender socket.
With the loco on the programme track I set CV8 to 8, the loco worked fine, I then entered the address as it was before the reset and it worked fine for a while then the same issue arose again.
i repeated the reset procedure and it worked fine again, so I left the address at 3 this time, after a while the issue arose once more, so with the loco on the programme track I read some of the CVs that I’m familiar with, CV2 read 160, so did CV3 and CV4!! CV12 was 0 and CV29 was 2. Since then I’ve set CV8 to 8 twice and tried just resetting CV2 to 2 and CV3 and 4 to 15 but nothing seems to stop the issue from arising. What on earth is happening, how can CVs reset themselves? Is it me, is it the decoder, is it my Elite or is it my Railmaster?
Any suggestions would be greatly appreciated.