Forum Discussion

ENG2242's avatar
ENG2242
Explorer
Oct 04, 2021

Bot Dometic A/C’s (Pink run off on roof)

Whilst preparing to clean the roof, I noticed a pink run off stain near both Dometic AC units. Any thoughts??
  • angelinmorrie363 wrote:
    Some plants are growing inside AC units. You can cut them off properly. It will cause any short circuit and internal problems. I have also seen plants on my Air Conditioner Unit. Due to lack of time, I could not cut them off, and one day my air conditioner stopped working.

    Curious, I have been working on RV roof AC units for 42 years and NEVER have I seen plants or such inside a AC unit. HOW would a plant get inside a roof AC unit 12 feet off the ground? And, where would it get dirt and nutrients to grow and live?????? Doug
  • Some plants are growing inside AC units. You can cut them off properly. It will cause any short circuit and internal problems. I have also seen plants on my Air Conditioner Unit. Due to lack of time, I could not cut them off, and one day my air conditioner stopped working.
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Pink is not a color that the A/C can generate so I'm guessing some kind of plant life growinginside the unit. Remove outer covers possibly the evaporator cover and clean.. Also while there remove condenser cover and clean it.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,211 PostsLatest Activity: Mar 09, 2025