Parrish Posted July 21, 2015 Share Posted July 21, 2015 My Hornby 0-6-0 DCC loco has problems.difficult to start! If I apply slight pressure to the loco she then picks up the signal, I have cleaned wheels to no avail.after she has started and I move onto ano loco without any control she throws herself into reverse and always at the same position on the track, but not every time!I am running two other DCC locos which behave perfectly well on the Same track.im new to DCC any suggestions?Steve Link to comment Share on other sites More sharing options...
poliss Posted July 21, 2015 Share Posted July 21, 2015 Sounds like the power pick-ups aren't making proper contact, maybe the wheels or elsewhere inside.I'm betting it goes into reverse as it goes over the points. What happens is a wheel touches the left and right rail at the same time, making a short circuit. This makes the loco think it's on DC and runs away out of control.Check that the back to back distance between the wheels is 14.4mm +/- 0.05mm.If you have the Elite you can turn of DC in CV29. You can't do that if you have the Select. Link to comment Share on other sites More sharing options...
Rog RJ Posted July 21, 2015 Share Posted July 21, 2015 You say you have cleaned the wheels but have you also cleaned the track? Link to comment Share on other sites More sharing options...
Parrish Posted July 21, 2015 Author Share Posted July 21, 2015 You say you have cleaned the wheels but have you also cleaned the track? Yes track cleaned other two locos running fine. Going to reset controller, and re address the three locos. Link to comment Share on other sites More sharing options...
RDS Posted July 21, 2015 Share Posted July 21, 2015 ... and re address the three locos ... I don't understand. I thought the other 2 Loco's were OK, if so, the controller must be OK as well. If I have understood correctly, the problem occurs at the same place but not every time, on the one Loco. Where is that place (as asked above by poliss) Surely, you just need to concentrate on the Loco that has the problem. Link to comment Share on other sites More sharing options...
Parrish Posted July 22, 2015 Author Share Posted July 22, 2015 ... and re address the three locos ... I don't understand. I thought the other 2 Loco's were OK, if so, the controller must be OK as well. If I have understood correctly, the problem occurs at the same place but not every time, on the one Loco. Where is that place (as asked above by poliss) Surely, you just need to concentrate on the Loco that has the problem. Yes two other locos run fine, for whatever reason the troublesome loco will not take ano address either.happens on a 2nd radius curve which is part of an inner track.As I only have the three locos I think I will reset the controller and re address the locos and see if that has any effect.that will be later tomorrow. Link to comment Share on other sites More sharing options...
poliss Posted July 22, 2015 Share Posted July 22, 2015 Does it happen over a rail joiner or just the same place on the curve? Link to comment Share on other sites More sharing options...
Parrish Posted July 22, 2015 Author Share Posted July 22, 2015 Same place same curve, but not all the time? Link to comment Share on other sites More sharing options...
RDS Posted July 22, 2015 Share Posted July 22, 2015 Same place same curve, but not all the time?so why do you think that resetting the controller and the id's will help if it is only one Loco that has a problem on the same piece of track. Link to comment Share on other sites More sharing options...
Parrish Posted July 22, 2015 Author Share Posted July 22, 2015 Same place same curve, but not all the time?so why do you think that resetting the controller and the id's will help if it is only one Loco that has a problem on the same piece of track.Any suggestions welcome! Link to comment Share on other sites More sharing options...
Howbi Posted July 22, 2015 Share Posted July 22, 2015 Parrish, it would be worth removing the loco body and checking if the decoder or any wiring is loose and likely to short against a wrong connection. If anything was loose then centrifugal force, whilst traversing the curve, might cause the problem. HB Link to comment Share on other sites More sharing options...
Fishmanoz Posted July 22, 2015 Share Posted July 22, 2015 I'm in the school thinking this is more likely a pickup issue, so make sure these and the backs of the wheels are clean and the pickups are properly tensioned on the wheels. However, resetting your controller can't do any harm, nor can changing the address of this loco. No point at all changing the addresses of the working locos, addresses are held in the loco decoders, not the controller. Link to comment Share on other sites More sharing options...
Parrish Posted July 23, 2015 Author Share Posted July 23, 2015 Sorted!reset the controller as per on line Hornby instructions.re addressed the troublesome loco.all so far appears to be ok.i did remove the body and have a look and a poke about the loco, measured wheel distances, cleaned everything.fingers crossedSteve Link to comment Share on other sites More sharing options...
Davidwilli Posted August 23, 2015 Share Posted August 23, 2015 Hi all,I have a similar problem to that mentioned above. I am running a DCC ready Flying Scotsman with a DCC chip fitted.The train sometimes has problems starting off may need a push on times, once going seems to be OK. But every so often if will come to a complete stand still for no apparent reason, or throw its self into reverse for about a metre then throw its self forward again and keep going. Could it be the DCC chip?I have done all that I read from the previous problem i.e. cleaned the track & wheels, re programmed the train and re set the controller but still the same problem.I have another loco that goes around the track without a problem. If I cant fix the problem is there somewhere I can send it for repair? Thanks, David. Link to comment Share on other sites More sharing options...
RB51 Posted August 23, 2015 Share Posted August 23, 2015 Before you send it away David - have you another chip you can put in to try? Leave it at 03 if it's a new one and just see how the engine runs. R- Link to comment Share on other sites More sharing options...
Davidwilli Posted August 23, 2015 Share Posted August 23, 2015 I have a new chip on order waiting for it to come. See how that goes. Thanks. Link to comment Share on other sites More sharing options...
Davidwilli Posted August 26, 2015 Share Posted August 26, 2015 OK, I have a new chip and replaced it today. Still got the same problems, I have re cleaned the track and the wheels. I'll have to have someone who knows more about it than me to look at it. Do Hornby do a repair service? Frustrated, David. Link to comment Share on other sites More sharing options...
Fishmanoz Posted August 26, 2015 Share Posted August 26, 2015 Less than 12 months old David, then return under warranty. Also talk to Hornby Customer Care about repair under warranty or otherwise. Link to comment Share on other sites More sharing options...
Flashbang Posted August 27, 2015 Share Posted August 27, 2015 Uncontrolled run a ways are caused by corrupt DCC data being received by the decoder that has DC running enabled. The decoder 'sees' the full DCC rail volts as being full power DC and the loco takes off like a scalded cat in one direction. It can not be stopped only by disconnecting the rail power. Note the emergency stop button does not remove track power! At times the loco will stop itself and revert to normal operation when it finally receives the correct DCC data, but some DCC command stations have to be instructed to resend this data as not all systems do this repeatedly!The simplest 'fix' is to turn off DC operation on the decoder via CV29, but this cannot be done for Select owners. Otherwise ensure clean rail tops, wheel treads, rear of wheel wipers inside faces and the rear of the pick up wheels. The use of bus filters may also help where a DCC bus pair of wires are used. Of course a defective decoder or its wiring can cause the same results! Link to comment Share on other sites More sharing options...
Davidwilli Posted August 28, 2015 Share Posted August 28, 2015 The loco came in a set R1167, is this the number you aer asking for?Can anyone recomend a good repair company? Link to comment Share on other sites More sharing options...
Rog RJ Posted August 28, 2015 Share Posted August 28, 2015 Can anyone recomend a good repair company?Hornby are usually pretty good. Link to comment Share on other sites More sharing options...
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