could just be a bad switch... sounds like a wiring/relay problem.. just an idea... get some extra wire and jumper the top motor to the battery and see if it works...
could just be a bad switch... sounds like a wiring/relay problem.. just an idea... get some extra wire and jumper the top motor to the battery and see if it works...
I was thinking that the clicking from the relays was them working (assuming they click in both directions).
You might consider pulling the power connection from the top motor and test the power leads with a multimeter. One lead for each direction. It may help you narrow it down.