Question about Dometic Rooftop RV Air Conditioner

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Have a 3200 roof top air conditioner in a coromal van every thing works except heater was told it is giong to cost $420.00 to fix van only two year old and heater has been used half a dozen times would this be right

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Without knowing more about your unit it is hard to make a good diagnosis,but in my opinion this sounds somewhat high to me. I would recommend that you get a couple of more estimates on it and see how they compare.Good luck and thank you.

Posted on May 23, 2011

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Posted on Jan 02, 2017

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Air-condition on roof is leaking inside. What will cause this ?


ohh!! this reminds me of when I used to own a 95 tradesman van and it had one of these roof top units , every time id use it and drive when u went to stop there would be water that would run out and go down my back in the drivers seat !! ohh that was cold !! many a cause for a bit of swearing at a stop light I remember , one day I did finally manage to get up top and take the plastic cover off that thing , seems the bee's had made a previous home inside the thing and had covered over the drain hole that allowed the condensate to drain out the side and down the roof , instead it was pooling up in there and would pour thru the vent inside and down my back when u stopped for a light or sign , that ac unit sure did work in that van I remember you could hang meat in there if you wanted too it was so cold , maybe that's what's wrong with yours the drain pan is clogged up with something ??

May 11, 2016 | Heating & Cooling

1 Answer

2008 Jeep Liberty-My heater was barely warm-blowing fine tho. Was told I had a plugged heater core and needed a new one. Had a new heater core put in and then my air conditioner stopped blowing cold air....


I woild be checking the vent controls as if the ac is working and the core was blocked then the air would be cool when the heat was selected but not changing Fixing the heater has resulted in a /c not being good enough to cool the air if the vent is not properly selecting. The point is that if the vent selection is not working properly (vacuum hoses) then the 2 faults will be related.

Oct 24, 2013 | Jeep Liberty Cars & Trucks

1 Answer

Noisy roof top airconditioner


pull shroud and isolate where noise coming from.

Feb 17, 2013 | Dometic Rooftop RV Air Conditioner

1 Answer

Our Rheem gas water heater was acting finicky a few months ago so we called the manufacturer and they sent us a new/replacement kit for the Invensys WIPER Electronic Control & FV Sensor. We replaced...


You're probably in for a service call and/or possibly water heater replacement if unit is more that 5-6 years old.
Your water heater plugs into outlet. Check outlet with cheap circuit analyzer to make sure the unit is receiving correct polarity without line interference.
If unit is in the attic, then add more venting to soffit and roof so pilot is not being snuffed out by hot air. If unit is in basement, then open some doors and a window and see if unit needs more air.
Most gas water heaters require yearly cleaning and service.
Clean the combustion parts and tubes.
Clean the air intake.
Have gas company check gas pressure.
Open following link for possible illustrations:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

The problem can be bad gas control valve, air in gas line, low gas pressure, gas shut off handle not fully parallel with gas line, dirty combustion parts, lack of combustion air, improper venting. Or combination of all things. It's an electronic gizmo, anything can be bad or shorted, and repair may not last long.

Without a trained service technician to ohm-test the parts using correct service manual, then we are guessing at the cause.

Power vent water heater implies that you have side wall venting which must be replaced with another side-wall vented unit -or- it implies rapid reheating of water.

If water heater is more than 6 years old, you might be money ahead by installing a new one from local box store. Avoid the power vent and electronics. Local box store will have passive roof-venting type water heater BUT box store does not sell side-wall power vent. If your power vent goes up through the roof, then box-store variety gas water heater will work. Total cost $350 do-it-yourself for 40 gallon gas.
Or get 40 gallon 240Volt electric for $220 and connect to circuit breaker box. Requires no venting, and is easy to repair for years to come.
Or small 120Volt electric that plugs into outlet to tide you over until gas repairs can be made.
Look for scratch-n-dent models and always offer 10% off.
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Shower uses 5-9 gallons hot water.

Aug 01, 2011 | Rheem Water Heaters

1 Answer

I have a travel trailer with a coleman 7300 roof top ac unit. the unit will blow cold air but water leaks thru the plenum. i was told by the previous owner that it needs a new seal. i would like to fix it...


If it's leaking inside where filter cover is, then real good chance the drains being plugged is the only problem. If water (condensation) not running off roof when operating in cool mode, then I'd bet drains, which are located under unit on roof, and you should see them sticking down like buttons. They have a hole in side that needs cleaning with a pipe cleaner or similar to open them up. If need be, shut off power to unit and remove top cover on roof unit and look for the drain holes in base, and clean them out. If water comes in while raining, but AC not running, then it's gasket. That is remedied by removing ceiling assembly (just screws) and 4 bolts that pull/hold the upper and lower assemblies together, unplug wiring to upper unit, and simply lift it off, change gasket and re-install. Tighten those 4 bolts equally when gasket is aligned properly over hole, only until gasket is approx 1/2, original thickness. Plug harness back in and your done. (about an hours work.) Only other thing that may be wrong is styrofoam drip tray for cooling unit, under cover on roof may have a crack , allowing condensation to leak in. If that 's the case, you can try to find a sealant compatible with styrofoam to seal those cracks.

Nov 14, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Roof top air


Hi,

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool…

Air Conditioner Trouble - Review the Possibilities

heatman101

Sep 05, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

Fan not blowing in coleman trs rv roof air


well check a few things first....have someone remove the cover and reach in with a hand and try to manually spin the blade...free spinning?....then tell the person below to click in the on postion while someone views from up top.....is it humming? or even trying to spin?....if not check the fuse on the RV that protects the A/C unit.....good?.....now replace the capacitor ( it the silver or gray can looking thing that the motor wires run to) only the correct size will work w/o causing further motor damage.

Jul 08, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

Water leaks in above and behind dashboard passenger side..onto floor board when it rains. Took it to dealer last time..charged 80 bucks told something was clogged but they would not tell me how to remedy...


There is only one thing that will cause it if you have a Sun roof and that is the water drain pipe from the roof to the wheel arch were it drains out and this bunged up,so blow it out with air compressor or high water pipe.
IF no to sunroof then its the windscreen leaking at the top and you might not beable to see it it will be at the top But dont try and fix it as the screen has to come out to do the job correctly.
But if only leaks water on floor and not on top of dash it could be the vent under windscreen were the wipers go and the vent drains the rain also to the left and right side of wheel arch, then they can be blocked and overflowing into the air box for the heater because that is where the air comes from when on FRESH AIR for heater..So check them out and do as required it shouldent cost you anything unless its the screen out..Job Have a goodday Let me know how you get on Ron

Oct 14, 2009 | 2001 Dodge Grand Caravan

5 Answers

Have roof top air conditioner that blows air but soon trips breaker. any suggestions? Henry


check the condensor fan in the rooof unit. It's the fan blowing on the cpil on the roof.. If it failed, the head preasures can becme excessive andwork the compressor hard causing the breaker to trip. Let me know and good luck, Ned_

Sep 13, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

This is a duo derm roof top air conditioner, possible compressor freezing up


If the compressor is not even trying to start you have an electrical problem in the circuit for the compressor. The thermostat could be open and not supplying power to the compressor or the thermal overload device could be open.

Nov 06, 2008 | Dometic Rooftop RV Air Conditioner

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