Question about Dometic Rooftop RV Air Conditioner

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When our air conditioner is running, water has started to accumulate of the ceiling around the vent. Can't figure out what is causing this?

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  • 189 Answers

Chances are you have an obstructed drain tube.

Posted on May 18, 2014

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Posted on Jan 02, 2017

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SOURCE: rv air conditioner leaking

I have the same problem....it is a negative pressure problem holding water inside the unit until it overflows the pan and runs into the duct system. why this occurs....I don't know....I cant find a problem with my air return, but as soon as you turn in off, the water comes gushing out the drains on the unit. I resolved this....temporarily....by twisting up a paper towel into a wick, and placing one end up into the drain tray, with the other end lying well out into the exterior case. This lets the water wick out and keeps the tray drained. I don't understand the problem and don't know what the permanent fix will be, except maybe cutting a hole and placing an intake vent directly below the unit.

Posted on May 11, 2009

motor1258
  • 6674 Answers

SOURCE: Our penquin dometic air conditioner in the bedroom

Sounds like base gasket at roof is loose or defective to start with. Try removing ceiling assembly enough to tighten 4 bolts that secure roof unit to inside bracket. Do not compress too much, just snug them all evenly and see if water slows or stops. If not, you will have to remove upper unit (roof) and replace gasket and re-secure but don't tighten to excessive, only compress gasket approx half of original thickness. Also make sure upper unit is aligned properly with opening of roof.

Posted on Sep 26, 2011

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1 Answer

Why is my ac window unit not cooling as well as it use to? .


Good Afternoon Friend,

I understand your Frigidaire air conditioner, model# FAC105P1A, is not cooling as well as it used to. Please try cleaning the air filter as well as the cabinet.

Air Filter Cleaning:

The air filter should be checked at least once a month to see if cleaning is necessary. Trapped particles in the filter can build up and cause an accumulation of frost on the cooling coils.

• Push the vent handle to the Vent Closed position (where applicable).
• Open the front panel.
• Grasp the filter by the center and pull up and out.
• Wash the filter using liquid dishwashing detergent and warm water. Rinse filter thoroughly. Gently shake excess water from the filter. Be sure filter is thoroughly dry before replacing.
• Or, instead of washing you may vacuum the filter clean.


Cabinet Cleaning:

• Be sure to unplug the air conditioner to prevent shock or fire hazard. The cabinet and front may be dusted with an oil-free cloth or washed with a cloth dampened in a solution of warm water and mild liquid dishwashing detergent. Rinse thoroughly and wipe dry.
• Never use harsh cleaners, wax or polish on the cabinet front.
• Be sure to wring excess water from the cloth before wiping around the controls. Excess water in or around the controls may cause damage to the air conditioner.
• Plug in air conditioner.

I ask that you please follow up with a comment on the post, at your convenience, to advise if further troubleshooting is needed or if your appliances status has changed successfully. Hope this is helpful.

-Best Regards-
WP

Jun 17, 2014 | Frigidaire FAC105P1A Window Air...

1 Answer

Ceiling leaks


coil is dirty or frezing up allowing water to leak.

Jul 07, 2013 | Ruud UBHC Air Conditioner

1 Answer

Water pours into my ceiling and out the vents even when on low cool


Have you noticed a reduction in water/condensation running across and off your roof? Most likely have plugged drain holes on upper (roof) unit. You'll have to remove cover and look for blockages at drains for evaporator ( front) which has a drip pan under it.

Oct 04, 2011 | Dometic Rooftop RV Air Conditioner

1 Answer

Stops blowing air


remove cover at ceiling so you can see in at fins and see if they are frosting up bad. If they are, I suspect during AC installation, they didn't open up ducts on discharge properly and air flow is restricted, which will cause freeze up, especially if low flow from discharge ducts. I'm assuming it is a ducted system. You may have to remove or drop down entire ceiling assy, to see if the ducts into ceiling have any blockage. Sometimes they don't cut rubber roof material back far enough, or misaligned ducts and cause restricted flow to ceiling vents, which will cause unit to frost up, which kicks out compressor until frost is melted, then compressor kicks back in and cooling happens again.

Apr 06, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Water Leaking around Ceiling Vent in Kitchen


it is likely a small leak i'd get a plumber money well spent you don't need the expense of a flood or search with a very brite flash light.Tom

Jun 18, 2009 | Heating & Cooling

3 Answers

Water is leaking from my downstairs air conditioning vent


I seriously doubt it's the AC. It may be the draing in the upstairs shower, If it's a water line it is a very small leak and is probably puddling in you ceiling. if not nbeing absorbed. Best thing is contact your homeowners insurance because you are going to not only have a plumber to deal with , but a mols issue as well. Sorry, good luck.

May 31, 2009 | Heating & Cooling

1 Answer

Wet line on ceiling between 2 air vents that runs about 8 feet


I would begin by inspecting and repairing the flashing around each vent. Generally you can use a caulk gun with a tube of roof cement for this quick repair.

May 17, 2009 | Heating & Cooling

1 Answer

Water has accumulated in my air conditioner...


You need to check to see if the unit is off-level, as it should be. From the outside, the unit should appear to be slightly tilted to allow for water run off. Also, check to make sure the water drain hole or holes are not clogged with debris. Remember, an air conditioner is also a good dehumidifer and the water that it removes from the air it is cooling must go somewhere.

Sep 11, 2008 | Hampton Bay HBLG5004 Air Conditioner

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