Ran into the same problem - I plugged in a crock pot that is rated at 275W (presumably on the "High" setting) for a short drive to a relative's house
My center console display gave me a message that my device exceed the 400W limit. This happened even after I reset and placed the crock pot on the "low" setting, and after a few seconds I got the same error message.
My FordPass app received the error messages as well, but it says the limit is indeed 175W (not the 400W the center console claimed)
Given the fact the crock pot tripped the 'breaker' even on the low setting, it looks indeed like the limit is 175
