Dometic AC unit dying

2351D with Dometic AC/Heat Pump.  When running the air, sounds like there is a bearing going out. Haven't tried the heat pump as the temp here is in the 90's. Does anyone know if this is a simple fix, factory service or what. Going to have to cut short  our trip in fear of it going out complettely. When I get home I'll call Keith at the motherrship to see if they repair on site or sent it out. Really don't want to drive up to Elkhart if I caan find a Dometic dealer near my home.
Thoughts

If I may ask, does the "bearing sound" happen when just the fan is running (you can test this by leaving the AC off and just running the fan)?  If so, then the fan is easier and cheaper to replace than the compressor.


Larry

I can't offer a specific solution, only things to check out.

Take the roof-top cover off the unit and do a quick inspection of everything.  Make sure a critter didn't move in, or a foreign object didn't get sucked up into it causing strange noises.  Also check the mounting bracket for the cooling fan up there.  My brother's a/c unit on top of his Starflyte, the cooling fan motor's mounting bracket became loose creating an odd sound.  He went a step further and fabricated an extra bracket for additional support for the fan up top to assure it wouldn't happen again.

Also tighten the screws that hold down the a/c unit.  They might have worked themselves loose, creating unusual sounds.

While you have the top cover off, make sure the cooling fins are clean of debris for maximum cooling performance.

Good luck!

Thanks guys. I do think it is the fan as it seized up yesterday during the heat of the day.
Now I just have to find out where the model number is located so I can get the appropriate part and find an installer.

PS
At my age and physical condition I don't do roofs. Nothing higher than a bar stool for me.
But thankjs

Re: Model and serial number.
Check the documents that came with your coach. Should be a list of all models and serial numbers for all components.

If you don't have the original paperwork, here's another option.

I have a different AC, but my model numbers are inside the RV and are visible after removing the inside cover. Once you take off the air filters you'll find screws to remove the inside cover. That will expose the main AC unit's part that extends thru the ceiling. You should find a white label with all of the model info details on it.


No need to get on the roof.


Larry