I have a 2000 Honda Crv with an electrical short?

I have a 2000 Honda Crv that has a short, if it sits overnight, it will run the battery down to being dead
I put the multtestor on it and it shows an excessive draw in the condenser fan fuse line. I put a new condenser cooling fan on it and it still shows the same.Had battery tested, it is fine. What could be wrong?

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