Quote Originally Posted by Fearless View Post
Understanding the logic that makes that "limit error" appear will reveal more possibilities for the error. The error is displayed when the dish motor is commanded to move but the ASC1 does not see any pulses from the sensor within 500 milliseconds. So a rusty polar mount can bind and delay movement long enough to set this error. Or a seized acme nut an an actuator. A faulty limit switch or intermittent fault in the motor caused by worn motor brushes. If a relay was stuck you more than likely have a situation where the dish moves one direction when the controller is powered on and won't turn off. Can you hear the relay click when it doesn't move? It still might be a bad relay too.
It happens only when try to move the dish to E. When the message is displayed, asc can move the dish to the W, but not E. When pressing the E button, there is NO click (sound) from the relay. Sometimes after few W commands, the E movement is restored !!! I suspect the head from the transf may have an impact also, as the top of the casing in that area is always warm (hot). Brian suggest to install some ferrite rings on the wires for the motor sensor (as in the pic), witch I did but the problem still pop up:

[Only registered and activated users can see links. ]

The actuator was replaced 1.5 years ago, after i considered that the first 12 years old, needed to get a rest.