2021 Discovery LXE 40M
Every few days we have to clean a dusty residue that accumulates on the rear bathroom counters (and probably all other surfaces). I can only think of two possibilities. A/C unit or outside dirt from road or engine. A/C unit return filters are clean. I will be keeping a closer eye on how this residue is appearing but thought I'd ask to see if anyone else has experienced this issue. Thanks!!
We experience the same issue. Unfortunately, we are driving a house on the washboards they call roads and the dust and road grime somehow finds its way into the coach.
Thanks for the response. I agree with you. We have eliminated the A/C. We cleaned the counters before a 5 hr drive and they were dirty when we arrived. No A/C was used. Now to try to figure out the entry spot and seal it off.
Your main air from outside comes in from the outside Fridge vent, ceiling vents not closed, and around your slides.