Motor will go up but not down. Solenoid only "clicks" on down switch push (on all switches)

What I have done:

1.) Disconnected each switch and tried the remaining switches, one by one. Trying to eliminate switches.

2.) Swapped locations of blue and green wires, resulting in down but no up.

Leads me to believe solenoid is bad.

Questions:

1.) Am I thinking this through correctly?

2.) If so, what is involved in removing a solenoid on this motor?

Thanks in advance,
Jeff