The installation manual says this:
OPTIONAL: Connect an amp meter to the incoming power to the control board and extend and retract the room. The slide should operate at a consistent amp load through out it’s entire stroke. Unusually high amps, or amp spikes during the stroke are a sure sign of a troubled installation.
Sounds like you have a "troubled installation" whatever that means. Slide physically damaged on one side? Jamming physically?
You didn't say but does the other motor work correctly?
I don't think my controllers click when engaging. I know there are relays but I've never heard them.