HDTV101 thanks for the tip. I did not even think to set the fluke meter to ac as normally most stuff that uses a ac transformer outputs dc volts.
I swapped the drive unit by 12pm before the snow fall yesturday,
did not want to be on a roof while there is snow or frost up there. Too dangerous for me.
Anyway last night I tired moving the antenna all last night and so far so good.
I noticed that when there is bad weather like last night I have to reposition the antenna more south east for Nbc all other stations were fine.
Usually I end up pointing at 170 to 175 for all stations to be 10 out of 10 and Nbc at 8 to 10. But with bad weather I noticed that I have to respoition the antenna between 155 to 160 to get Nbc at 8 with Fox droping to 8 to 10 and all others are 10.
I thought that the drive unit would have a reed sensor like the old c band satellite actuators. So if there is a problem it would display actuator error and more precise in position. Instead the controller displays that its moving while it is not.
HD you have too much time on your hands
to install sensors up there, but you know what I think I might just add a temp sensor next spring.
Mark2074 if your control unit is going bad the channel master wireless remote and controller maybe compatible with your rotor. On their web site is says compatible with Radio Shack 15-1225