Question about Dometic Rooftop RV Air Conditioner
My shroud cracked today while I was removing it to learn why the fan makes so much noise. So I need a new shroud.
Try googeling Camping world ,Adventurerv ,or best rv and truck supplies ,these are all in the USA who deliver to Australia.I usually find that it is much cheaper to buy parts like this from the US even with the delivery charge.
Good Luck John
Posted on Oct 12, 2012
SOURCE: dometic duo therm a/c for rv
If it's a dometic try ( http://www.dometic.com/enus/Americas/USA/RV-Products/climate/ac-display-page/?productdataid=66932 ) and if it's a coleman/RVP try ( http://www.rvcomfort.com/rvp/products/rooftop/LP_polarMach.php )
Posted on Aug 29, 2008
Make sure that you are not running the unit on low fan speed. In the warmer months of the year, this will often cause the unit to freeze up due to the lack of air flow through the evaporator. If you are running on high and it is still freezing, then you possibly have a freon leak in the system. The brisk airs are notorious for the capillary tubes in the upper unit rubbing together and developing a small leak. The problem is usually where the two small tubes enter the evaporator housing. Remove the cover and pull the two small lines apart, damage should be apparent if there is any. If not, you may have developed a leak elsewhere and need to have someone check out the system.
Hope this helps,
Posted on Jul 05, 2009
Usually just listening closely will give you a rough idea where to look for problem. When you have the fan on and switch to cool, (with temperature turned down low obviously) do you hear any type of "moaning" sounds from AC unit, or see lights in RV dim slightly indicating that compressor is trying to engage? Is the breaker tripping when compressor tries to engage? Do you hear a "click" from AC unit when switched to cool? If none of that happens, then I'd start thinking thermostat, or compressor relay. Normally if it's a faulty capacitor, the compressor will try to engage but will make a "moaning sound" and usually trip the breaker due to excess current draw. Someone experience in electrical should be able to test relays etc, but whoever does work on it, should be aware that those capacitors, as well as hydro in general are very dangerous to work with. The ("zap",- Shock) that you can experience from a capacitor or hydro, can be fatal.
Posted on May 30, 2010
These are a closed system.(meaning that there is no fill valves for recharging) But a heating & cooling technician can solder them on and re-charge the system. Only problem there is to get an estimate up front, and compare it to buying a new roof unit which also comes with a new warranty, as well as keep in mind that the freon went somewhere, so there is an obvious leak that will need to be addressed as well. Most times it's wiser and cheaper in long run just to buy a new roof unit.
Are you sure that the compressor is kicking in? Did anyone remove cover on roof and check lines from compressor to see if any cooling is occurring?
These don't often leak, that's why I'm asking. Any idea how old the unit is?
Perhaps in fairly new, it's a warranty issue.
Posted on Jul 09, 2010
Sounds like your fan motor has gone bad...
Here is a tip about trouble shooting your air conditioner...
Air Conditioner Trouble -Review the Possibilities
Posted on Jul 19, 2010
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