cpenn Report post Posted August 20, 2023 I had two new Dometic penguin ac/hp units installed on my motor home…They work great but the only problem is when in heat pump mode condensation forms on everything inside the motor home…Thanks in advance for any help. Share this post Link to post Share on other sites
wildebill308 Report post Posted August 20, 2023 Try the propane furnace and see if it does the same thing. Bill Share this post Link to post Share on other sites
cpenn Report post Posted August 20, 2023 Bill, No condensation inside when propane furnace is on Share this post Link to post Share on other sites
wildebill308 Report post Posted August 20, 2023 (edited) 6 hours ago, cpenn said: Bill, No condensation inside when propane furnace is on Well there is nothing in the operation of heat pumps that would create moisture. As you know all heat pumps are nothing but your AC running in reverse. It is blowing the waste heat in to the coach. Most likely it is just hi humidity conditions. Next time it gets damp try switching to the propane and see if it changes anything. I see a lot of people using dehumidifiers in their RVs Bill Edited August 20, 2023 by wildebill308 Share this post Link to post Share on other sites
rayin Report post Posted August 23, 2023 (edited) If you can stand the weather on your roof, make sure the drain pan under each coil is draining properly. If the indoor fan can pickup built-up water from the drain pan it can spray it back into the warmed air. Edited August 23, 2023 by rayin Share this post Link to post Share on other sites