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Air conditioner is cooling good in 100 degee but drains water back inside rv

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Stoped up drain; get an air hose and blow into drain backwards.

Posted on Jun 28, 2009

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1 Answer

Why is my brisk air duo therm rv ac freezing up on the inside.


Where you see frost all the time, wait for unit to thaw and start cooling again and carefully slide hand up in that hole and see if you can feel cool air leaking in from divider that separates cool and return air, that will cause freeze-ups as well. Use foil tape if necessary to stop any cool air coming in to return air from around divider. Also, if you have any diffusers closed, (on ducted system in ceiling) or partially closed, open them all up full flow. If you restrict the cold air from coming out too much, it can also cause freeze up. One more thing, take cover off where cool air box is and double check that something isn't restricting the flow of cold in to the duct work if it has ducted system.

Jul 12, 2014 | Dometic Rooftop RV Air Conditioner

1 Answer

Water coming from aircon inside


Typically a blocked evaporator drain. Remove filter and inspect the drain pan which is below the radiator looking bit. Clear any obvious blockage around the outlet. Alternatively, find the drain outlet and blow back up it gently. This can be done with compressed air or similar. Take a photo of the indoor / incar unit and post it here if you are still stuck.

Dec 22, 2012 | Dometic Rooftop RV Air Conditioner

1 Answer

Water Leaks inside of RV


Hi,
When that happens it is because the drain hole up on the unit gets plugged with dust and dirt...you will need to take a wire up top and run it back through the hole to clean the dirt out of the hole so the water can get out.

heatman101

Aug 19, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

On my 28 foot Itasca motorhome the air conditioner is leaking water through the gasket on the roof. I pulled the inside cover off and took out the four big boltd holding the roof top section, but I can't...


You need to find where the drain is. The water should flow to a drain and not into the unit. Once you get the condensation draining properly you can use a good quality silicone to seat around the unit. You might check at a RV parts place and find a product they recommend for RV roofs. Hope this helps.

Nov 19, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

My roof top RV air conditioner is dripping water inside my RV


Check run-of on roof & see if it's been reduced lately, it may just be a plugged drain at base of unit on roof.

Jul 29, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Im at an rv park, approximately 90 degees in the sun, air was cool for about 2 hours, fan continued to run but no cold air. When I change the thermostat I can hear it click but nothing changes.


Take air filter off , look up inside & see if coils freezing/frosting up when starts to blow warm air.
Is this a new unit, and has it always done that or just recently?

Jul 21, 2009 | Coleman Mach 15 Air Conditioner

1 Answer

My dometic RV rooftop air conditioner is leaking on the inside of the camper even after I cleaned the water condensation drain on top of the roof. What could be causing this? The fan is blowing the water...


Remove all covers and look down with them removed and see if the coil drain pan has a stopped up exit where the water drains out and into the rear of the AC unit.

If the unit is off level it could cause a draining problem too.

Jul 10, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Coleman tsr rv air conditioner leaks into rv when running


It probably has a clogged condensate drain. Take off the cover on top the RV and check hoses or tubes leaving unit for debris or lint. Often this water is used to help cool the condenser so look for leaves pine needles etc in the pan. There may be a cover you can remove on the evaporator section that will allow you to clean the collection pan and hose or trough. Is it possible the RV is far enough out of level that the condensate can't "run uphill"? Always power off while working on this unit unless you are electric savvy. Good luck!

Jun 28, 2009 | Coleman Mach 15 Air Conditioner

1 Answer

Coleman mach air


Time for a spring cleanning,, especially the drainnage system, filter,, front cooling coils-and the drain line! thank you-very-much!

Aug 28, 2008 | Coleman Mach III Air Conditioner

2 Answers

DUO THERM Model 57915.622 runs and cools fine, but why does it drip water inside on the floor?


I am not en expert at RV A/C units. I have worked on a couple before. There should be a reservoir somewhere under the evaporator coil(looks kind of like a radiator in a car but much smaller). It should have a hose or something to drain it away from the a/c unit. These very often become plugged on any kind of A/C unit. However if you choose to do this on your own, you will have to climb on top of the RV and remove the cover from the a/c unit to do this. It might be safer to take it to an RV repair shop.

Jun 16, 2008 | Dometic Rooftop RV Air Conditioner

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