I think I fried one side of my Z4000.....turned on no power...and no buzz like it does when there is a short....other throttle works....switched the AIU inputs after switch the track that had no power had power...so obviously the problem is the throttle on the Z...
any options I have or is the one throttle dead?
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Have you checked the circuit breakers on the back?
Have you checked the circuit breakers on the back?
Something tripped the breaker? Unplug it, wait a little and plug it again and check the offending throttle. What do you have?
The "throttle" is a potentiometer. We have had problems with the potentiometer on one side of our club's Z4000. It is fixable. Unless you released the "magic smoke", I doubt it is fried.
What are the lights doing? What is on the digital display?
As Matt mentioned above, there are 4 small, white circuit breakers on the Z4000, one for each handle and one each for the 10 volt and 14 volt outputs. These are in addition to the electronic circuit breakers for the handles.
They are located 2 on each side of the Z4000, near the bottom of the transformer. When they trip, they must be manually reset. Most likely, one of the two on the side of the "dead" handle has tripped.
If it starts up and runs the other side, it may also be a broken lead at the terminal inside. Or the breaker as mentioned. G
My Z4000 also has issues with left throttle, first it started sounding the postwar tender whistle all the time, then it stopped putting any power out. The voltage will go up and down but only up to 15 volts. The right side works fine. I wonder if it is the potentiometer that Gilly mentioned above, any thoughts?
Frank
if the potentiometer is bad you will see a voltage fluctuation on your volt ohm meter while moving the throttle on that side and voltage may be erratic look to see that voltage move slowly as you move the throttle slowly. you can compare it to the good working side.
p.s. if the potentiometer is bad only an mth asc tech can repair them or send it back to mth directly!
Alan
The issue we had was the in physical connection between the handle and the potentiometer. We did not experience fluctuations, it presented more as "dead" on one side of the transformer. And yes, it took a MTH Tech to get it fixed.
great glad you got it repaired!
That was an easy fix - thanks everyone
Thanks for your advice. I'm going to send it to MTH for repair.
Frank
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