Question about Dometic Rooftop RV Air Conditioner
Had a new A C unit installed and it isn't blowing out very much cold air and isn't blowing hardly at all in the back bedroom of our camper, I'm wondering if it is bigenough for our camper. The model # is 641416.301c0
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Posted on Jan 02, 2017
Check for the following problems
(1) Check if compressor is geting power
(2) Check if system have Refrigerant in it
(3) Check if pressure switches are operational
(4) Check Thermostrat setting.
(5) Check for dirty or block condenser or evaporator
Send feed back if you solve problem
Posted on Mar 27, 2008
I have a new Montana Mountaineer with a Dometic Duo Therm as well and experience something similar.
It appears that there are two options:
1. Open the vents in the unit and all the cold air will blow out of the AC as that would be the shortest path and the there is hardly any air coming out of the ducts.
2. Close the vents in the unit and it will force all the air through the ducts.
We let the air blow straight out of the unit during the day and then force it through the ducts at night to force it in the bedrooms. You could also open the vents in the unit part ways to get a combination.
I didn't figure it out immediatly either, but just look close at the unit and you can see that you can close the vents on the unit itself
Posted on Apr 20, 2009
There could be a freon leak, or just low freon levels. If this is the case, you have to call a certified a/c technician to recharge your system.
Posted on May 19, 2009
SOURCE: i have a travel trailer
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.
Posted on Dec 03, 2010
Tips for a great answer:
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If this isn't the problem the AC compressor relay may also cause this, flip a coin.
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