[electricboats] Thunderstruck ac 34 troubleshooting help

Hello!

I have a Ac34  system with a cutis controller from thunderstruck motors on my sail boat.  

 https://www.thunderstruck-ev.com/ac-34-w-1238-5601-clone-en-2.html

After being away from the boat for around six weeks, I turned the switch and I heard a loud pop and saw a flash in the engine compartment…

The controller gave an error 39.  Error:  39 Main Contactor Did Not Close

After I replaced the contacter, it makes it's usual click quickly followed by a second click and now I get error 37:

Motor Open
1) Motor phase is open
2) Bad crimps or faulty
wiring
Set: Motor phase U, V or W
detected open Clear:
Cycle KS

I cleaned contacts for the three cables coming from controller to motor and continuity tested good, but still getting the error 37.

The spare contractor I had on hand is not as beefy as the previous one and is possibley not rated correctly for the system, I have ordered a new one.

In the meantime are there tests I can do on the motor to make sure that there is not an issue with it as I wait for new contactror?  My google searches have come up with some multi meter tests but seem spacific to particular motors.

Any help would be greatly appreciated, I am missing out on the sailing days I waited the whole foggy summer for here on the San Francisco Bay …!

Thank you!

Anton Herbert