It totally blows me away that Heartland and Lippert have not fixed this very very common and underengineered problem. I had a Cyclone 3950 for three years. It started out blowing fuses so my brother who is an electrician, put me on to "fuse circuit breakers" that I picked up at Auto Zone. These are a resetting fuse and helps the problem of replacing fuses but not the overall problem of an underengineered system. After six months of purchase I had a dealer replace the original electric motor with a larger heavier duty motor. This worked for about 2 1/2 years. Very slow but at least worked for a while.
This year after going south to Tucson I knew the motor was going out again as it was heating up and stinking. I called Lippert and they suggested going to a dual motor system which I ordered from them. It makes sense to have two motors then one and it appeared to work pretty effortlessly and took about six hours to put in. You replace door side leg with a new one that has it's own motor on it. The cross over rod from the left side to the right goes to the junk yard also. You replace the old right leg, wire it in (easy enough), wire in a second switch (operate both at the same time not separately) and it raised and lowered pretty nicely. I used it twice and traded the coach off for a new Carriage. Over the years I owned the Cyclone I did most all repair myself but only put in $1,853 in replacement items which isn't bad.
The wife and I had been a little uncomfortable with the Cyclone Toy Hauler small living room so we were looking at the regular Heartlands and saw that basically they were of the same quality and construction as our (mid entry level Cyclone. Nice but not quite there. We looked at Montanas and they were of lesser construction and some cheapo items like the shower stalls. We looked at others and then ran into the Carriage 36fws which is a 37 1/2 foot full wall slide and fell in love with it. Of course better construction and better components come at a cost but we felt it was worth it. So why am I on the Heartland Forum and not the Carriage. Easy. This is still the best forum for helpful people and I like to be able to help people with my past knowledge of the Heartland.