roof air failures

There is something bad going on!! We are wintering in FL. Just today 2 of my neighbors had their AC units fail. There were 2 different service trucks here at the than the same time. I think this could result in more failures than the refrig. problems. These failures are in addition to the ones in my pervious post, and just the ones I know about.

the silverback wrote:
There is something bad going on!! We are wintering in FL. Just today 2 of my neighbors had their AC units fail. There were 2 different service trucks here at the than the same time. I think this could result in more failures than the refrig. problems. These failures are in addition to the ones in my pervious post, and just the ones I know about.

R these failures on low end or high end Class A motor homes?
R they on new or older units?

I live in 400 space mid to high end Class A resort and don't think I have seen more than 2 roof AC units replaced in the last 5 years or more

the silverback wrote:
There is something bad going on!! We are wintering in FL. Just today 2 of my neighbors had their AC units fail. There were 2 different service trucks here at the than the same time. I think this could result in more failures than the refrig. problems. These failures are in addition to the ones in my pervious post, and just the ones I know about.

Check for the voltage at the power pedestal. Without protection from input voltage fluctuations, some AC units may fail from either too high or too low voltage.

Donfromp, In answer to your questions, Both AC's were Dometic. One of the RV;s, a park model was purchased 2 or 3 weeks ago. The second RV, a travel trailer, was purchased 2 months ago.

the silverback wrote:
Donfromp, In answer to your questions, Both AC's were Dometic. One of the RV;s, a park model was purchased 2 or 3 weeks ago. The second RV, a travel trailer, was purchased 2 months ago.

oh ok because we are a class A forum I automatically assumed they were A Motor homes (my bad) iam almost on the posters side whom suggested a park pedestal problem maybe Dometic just had a bad run>?

Dometic had a bunch of units with bad solder joints. Many surfaced around the beginning of 2014, but there still could be some out there.

In the first 6 months after purchasing our new MH in 2013, we had 2 of the 3 Dometic units fail. They were replaced under warranty and we haven't had any issues since.

Not that I needed another reason to keep my 11 (or is it 12) year old MH... I recently had to replace a $140 control board on one of my three Dometic units. This was the first money I'd spent on them although I do have a spare new (old style) unit if I cannot fix one myself.

I wonder if the newer units are more energy efficient? The fan on my 15K unit draw 4 amps and the compressor 9 for a total of 13 when cooling.

I don't understand.....Dometic had a bad batch of A/C units where they were not soldered correctly.....they replaced them and the problem was resolved, yet it somehow becomes a platform for people to bash new coaches and justify keeping their old ones. Does that mean the people with older coaches NEVER had anything go wrong or will in the future due to age?

bullydogs1 wrote:
Some of the Coleman Mach units were using plastic fans and they crack and throw the parts inside the cover itself taking out the whole unit with them...While Entegra Coach has been plagued with these, they do have a revised fan available....

that was when they switched to the "quiet" blades. I had a fan crack made a loud noise and I was able to shut the unit down. When I replaced the fan I found two of the three isolator mounting screws were missing . Needless to say I removed the screws from the other 2 a/c units and put locktight on them. Entegra sent me three fans when one cracked so I replaced all three