We picked up our new 179, the dealers brief was OK but strictly superficial. They couldn't get the refrigerator to work on 12v after about 20 minutes they said their was "a polarization issue". At home I plugged it into ac everything was working but battery stayed at 2/3 obviously not charging.
On our first trip we had 110V power but battery which had charged during trip started running down. I call Dufour's they had no ideas "bring it in when you get back"
Think about it the only system that seemed to be inop. was the convertor got the manual out it says even an instantaneous reverse polarization will blow both 40 amp. reverse polarity protection fuses.
Replaced fuses convertor fine.
Obviously someone at Dufour's connected the battery wrong, I feel they should have checked this after the refrigerator issue.
Verdict on Dufour's still out but I have my doubts.