I seem to have developed a problem with the electro coupler on my Lionel 38055 Santa Fe Northern. Whenever it passes over a switch the coupler opens! I’ve tried re-setting the locomotive in program mode - entering the loco number “74” in this case, everything seems to set correctly but the problem persists. Living in the it’s not too easy getting to a dealer so just wondered if any one had any suggestions.
Yeah try pitting one of these…1.0µF 50V Non-Polarized Capacitor across the leads of the ectro couple where it connects to the board… This prevents some issue that caude the coupler to open.
I concur with Marty’s fix, I’ve had to do this on two engines that’ve passed through my hands. Make sure you use NON-POLARIZED. A polarized capacitor can/will explode.
I had the same problem on an MTH Berkshire that I converted to TMCC I was advised to add a nonpolarized cap. This fixed the problem and one year latter its still working correctly