Have had an HO Spectrum 2-10-2 for 5 years. Been running it on a DC system. Recently the reverse operation has failed; forward operation continues to be OK.
Any ideas for troubleshooting the problem?
Does this happen with other locomotives using the same controller?
No. Forward and reverse is operational on all other locomotives.
It's DCC "ready" or "equipped" right? Would a bad decoder or loose dummy plug cause an issue like this? I know you run it on DC, but a DCC "equipped" will have it's decoder and a "ready" model will have the dummy plug.
Sid
Quote from: WoundedBear on July 05, 2019, 04:01:00 PM
It's DCC "ready" or "equipped" right? Would a bad decoder or loose dummy plug cause an issue like this? I know you run it on DC, but a DCC "equipped" will have it's decoder and a "ready" model will have the dummy plug.
Sid
If either direction works I doubt it's a wiring problem because the motor turns, I don't see how reversing the polarity would change anything.
However, if the loco does have a decoder it may have developed a glitch: Resetting the decoder to factory settings would probably fix it.
Bill, try taking the loco to a shop with a DCC system. In most decoders, programing CV8 to 8 will initiate the reset.
Otherwise there may be a mechanical explanation, perhaps something has come loose or broken off and is now rubbing against a gear?
Here is the diagram of the loco, DCC on board or analog version in case you do not have this diagram.
I am not sure what would do this yet.
https://www.bachmanntrains.com/home-usa/dwg/dwgs/H833X-IS001.PDF
Rich