I am curious how common this issue is and ideas to solve it. I have three loops which can be run independently and have each powered by a z-1000. The loops are also connected by 072 switches and I have the system set up that one of the transformers can be switched to power everything so a single loco can run anywhere on the the three loops (I run conventional operation). Two of the z-1000 units are phased the same but one is different. I had to make a "cheater" receptacle to plug it into so I could reverse the hot and neutral. Is this inconsistent phasing a common issue and is there another way to solve this problem? I hate to switch out the plugs on the transformers and I have not been inside one of these to see if it is easy to switch the connections. Any thoughts on this?
Replies sorted oldest to newest
There were some MTH and Lionel transformers of certain vintages that were wired incorrectly internally. I've fixed several Z1000 units by just opening them and swapping the wires to correct the phasing.
For anyone reading this thread in the future, be patient working the top off (the large piece), the foam sponge material has adhesive on both sides and it is tough to work loose.
I think they're supposed to pay attention to the ribbed conductor on the power cord.
This is disappointing. MTH makes a big deal about having UL approval on their power packs, isn't proper phasing something that UL looks at when issuing their approval? Seems like the existence of this this issue doesn't say much for MTH's quality control or for UL's approval process either...
Bill in FTL
I had a Z1000 brick wired incorrectly. I had an older three to two prong adapter on hand that did not have polarized blades and was able to correct the phase by doing a 180 into the receptacle.