WHY a hot ZW?

KRMOGR Forum Member

WHY a hot ZW?

Got a question?

I have two ZWs on my layout and one always gets warm after it has been on for a while. The other stays cool. Both seem to have plenty of power and if I switch the loads it does not change the one from getting warm and the other not. They both have new rollers and have been serviced.

I never noticed this until I pulled the one off because of the extreme heat caused by a stuck roller and had it serviced and the rollers replaced. It was only when I started using my back-up ZW did I find out that one does not get hot like the other one always has.

Any ideas on why??

4/20/1712:37 PM

Original Post

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