Model 8210/8250 Maintenance Manual Section 5. Troubleshooting
Symptom Tables: Lift/Lower System
Publication:1146945/001, Revised: 25 Sep 2018 5-21
No Lift or Lower. No Fault
Codes.
Possible Cause Action
Throttle magnet-actuator arm (in the
control handle) out of adjustment
Check with the service display and repair as needed.
Bad VM. If no other problems are noted but the VM does not detect
the presence of the magnet, replace the VM.
Incorrect VM software installed.
NOTE: This is only possible if the VM was recently replaced.
Lowering may not occur if the incorrect software was inadvertently
installed (the drive function will also not function correctly). Check
for the correct software part number and replace the VM if not
correct.
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