MTH Z4000 Problem

Kris,

   I would frst disconnet the power from the track and see if the transformer returns to normal. If it does than you have a track problem. If not the problem maybe iwth the  transformer. Others may chime in with other suggestions.

Break the problem down into small parts.  Turn transformer off, look at how you wired the layout, is there a cross connection.  Set up a test track, preferably on the floor, try to replicate the event.  The easiest way to figure out the cause of the problem is to start as if the layout is brand new and the transformer is fresh out of the box.  Let us know how this turns out.

Disconnect all wires coming from the transformer. Both handles have to be off on startup of the Z-4000 or the red light stays on and 40 volts appear on track 1. If the handles are off on startup and it still acts that way, then you probably have a problem inside with the gears or the potentiometer no letting the voltage go back to zero. Most likely the problem I think.

Thank you all for your reply.

Dear Joe

So in other words I have to open it up and take a look inside. Do you know of any MTH authorized repair shops in NJ?

As far as track 1 not working after the crash, did you lower the handle to zero before turning it on again?

Yes the handles stated zero and the when I placed the engine on track it took off like a bat out of hell.

Now I placed it on the test track this is what I get.

I tried to power up the transformer again now on a simple separate loop of track. Unfortunately the red light on the left was blinking and there is no power output whatsoever. I am sure that this transformer is not working.

Disconnect the transformer from any track.  Make sure both handles are down in the off position and turn on.  Lights should blink and LED should stabilize and read zero volts and amps?  Does it do that?  If not might have a zero adjust issue with the pot on the handle.

Though I am not sure how you got full voltage to track 1 with handle down.  That does sound like an internal failure.  G

I have the exact same problem on one of my Z1000, I called MTH and they gave me  instruction on something with the potentiometer, however all seemed to look OK with it.

John Pignatelli

So it's still not working?

Thank you. G

Dear cjack the problem child is still acting up. Thanks for the info.

Dear Joe

What did you do to get it repaired? Did you do the repair yourself or did you have to send it to MTH? How much did it cost?

what is the serial number on the back and when you first turn it on there should the amp led should come on temparily with a date like 1 and the other led 23,does your transformer come on with that code or does it just power up and the red short light come on and stay on?

Alan

Send me an email maybe i can help you!

Alan

check your email

Kris, The Z-4000 is far more complicated then the Z-1000 controller.  That is simple FETs and a TVS.

If yours is faulting it can be a control board or the Power board.  They are not normally component repairable for a major issue like yours.  G

Dear GGG

I have been speaking to Alan and Marty as well. Both of them stated to send it to MTH directly for repairs.  I can see that is not a remove and replace type of repair but more detailed that has to be done someone who is trained in this type of equipment. Thanks for your input.

Kris

No not working, I will drop it off at MTH when I am up that way.

Dear All

Thank you for your help and suggestions. I called MTH directly and got a authorized return number and I am having them check it out and try to fix it. The nearest MTH authorized repair center is on Long Island and that is a driving nightmare. I have to go through 4 counties, two of which are part of NYC. What does one have to do and what certification do you need to become a MTH factory authorized repair shop? 

you have to go to there school in Maryland and you just missed it there was one in October and august , but MTH usually won't sell you transformer parts . check your email I tried calling you but the number you left does not work, call me I left you my number ok!

Alan

Got it thanks, I sent it to MTH in MD.

Since they just had an MTH school/class just recently, how does one get on board for one of their schools, and do you have an idea what the cost is for the class. Is it at their facility in Maryland?

                             Steam Forever

                                   John

Don't you have to have an MTH dealer sponsor you before they will allow you into the MTH school?

You must be sponsored by a dealer, and the classes are free.  If you want the test set(s), you have to pay for those.  You're also responsible for travel and lodging during the class.  The classes are indeed held at the MTH offices.

Thanks John. Do you know when the next class is scheduled?

That would be a question for Jeff at MTH, I don't know what their schedule is.