Topic: LTV Wonder RTB 2020 Dometic AC fan works/ but does not cool (Read 710 times) previous topic - next topic

Returned from a 3 week trip in Florida/Georgia.  Used the air conditioner a lot and it was fine. 
Returned home to Louisiana and found that the ac came on and blew air but did not cool - we have a 30 amp outlet. 
Thinking of replacement with a Houghton Air conditioner, but may try to trouble shoot first. 
Have to go on the roof to get model #'s etc. so haven't done anything yet.
If you have any ideas please advise.  The chassis is 2020 - how long do Dometics last?