Having trouble with my residential workshop RC3020. I have spent 12 hours toning out wiring throughout the lift with every access panel and plate removed.
My FWD/REV performance has gone from intermittent to absent. Batteries at 38.6V; Amperage good; fluids good -- before your ask ;-) I was able to get "some" movement if I unplugged the batteries and inserted. Sometimes it operates, sometimes a single side of the FWD/REV solenoid clicks. If this happens then I need to unplug/plug to get flow.
At this point, I have performed the following diagnostic steps:
+ verified main power solenoid function
+ verified that all connection solenoids operate correctly with 24V
+ chased all signal wires/leads from solenoid to ECU
+ ohm'd the micro switches on the control stick
The lift and tilt are still working fine. The steering drive is operational.
What am I missing? At current, the only solenoids operating are the main power solenoid and the hydrolic pump solenoid. I'm not hearing or seeing the other solenoid/switches operating. I "think" I'm only getting 18V to these solenoid/switches.
Other tips from people far smarter than I?
Thanks!
/jm
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