looking for advice suggestions

no start yesterday and again today.

Its not the RCM. I’ve just soldered up the three connection points that are the culprit and the fan does not turn on when attempting to turn it over

yesyetday it started after sitting. And it started again today
cluld it be starter or have I missed something on the RCM

My guess is starter it turns over twice but dies before it actually starts. Any suggestions or test procedures to narrow it down would be appreciated