65TROUBLE SHOOTINGl Locomotive was running yesterday but today it just sits there - The headlight andother functions are controllable but it won’t run. - This sometimes happens when youclear a consist but for some reason the decoder misses the command. Use the DELLOCO button to “re-delete” the locomotive. Alternatively use programming on themain to set CV19 to 0 (same thing as clearing the consist).l Head Light goes on and off as I change speed - You are operating a loco with anolder 14 step decoder in the 28 step mode and the head light is ON only in the evenspeed steps.l The programmability of the decoders gives the modeler a lot of flexibility. However,this can lead to some unpredictable results. Here are a few tips to get you out ofsome situations:l Loco won’t respond -l Check that the short/long address bit is set correctly in the CFG variable (CV 29).l The loco might be in a consist - Press DEL LOCO, the locomotive numberthen ENTER.l Make sure CV3, 4, 23, 24 are set to a small enough value to allow the loco toaccelerate at a reasonable ratel Loco won’t run on an analog (DC) layout - Check that the DC mode bit is set inthe CFG variable (CV 29).