No cold air coming out of blower

DuoTherm by Domestic-Fan runs, no cold air - iRV2 Forums

www.irv2.com > ... > RV Systems & Appliances
Jan 22, 2012 - 12 posts - ‎4 authors Duo Therm by Dometic 13500 BTU air conditioning with ducting, furnace. I. ... If the fan runs but no cold air and the compressor feels like it is ...

A/C just stopped blowing cold.....any ideas??! - RV Forum

www.rvforum.net > ... > RVing message boards > Trailers & Fifthwheels
Jul 27, 2008 - 23 posts - ‎6 authors We have run it continuos like this before without any troubles. Thanks for the help! ....When you switch the AC unit on, the fan runs, but the compressor doesnt fire up. You used to be able ... You can find Dometic here. Logged. Dometic Duo Them Air Conditioner Cycles
4 posts
Jul 21, 2015
Dometic SL-135 A/C problem
7 posts
May 29, 2012
Dometic ac compressor runs but fan does not on auto
6 posts
Jun 5, 2011
AC blower runs full time w/ AC on
14 posts
Sep 2, 2009
More results from www.rvforum.net

Controls at wall thermostat, or manual at ceiling?

Hopefully there is just something in the blower wheel. Unless you can get to it from the ceiling of the RV you will have to take the cover off the unit to get to the blower assembly. The blower is the front fan that blows the air in to the trailer. If you can get the grilles off of the ceiling, turn the unit off and use a flash light to see if there is something stuff up in the actual blower or the assembly.

sounds like it is skipping the motor I mean, I am assuming that it was replaced with the correct motor(rpms,hp,volts). As if it was not it will skip, like it is doing now.

My sheet shows part # 3100248.420 as fan run capacitor.You may have an updated number. Check voltage outputs labeled on it are same as on old one, and double check wiring is correct, to and from capacitor. Be careful not to mistake compressor start capacitor as well. By sounds of number, it's probably the right one.

Check for broken / disconnected vacume line in engine compartment. they are about. 4mm in diameter made of hard plastic.It will go through the fire wall usually on the passengers side near heater / AC blower box. After years of heat and cold they become very brittle. they carry it at most auto parts stores.

if a leak, should be repairable, a lot of techs these days find it easier and more profitable just to replace things. try a new tech

your problem is a simple one actually. You don't have enough power available to run your ac on high. If you get a meter to test amperage and voltage you will see that there is a serious drop from what they may advertise and what you actually get. Try to minimize use of other appliances when your AC is on and you should be ok.

List of possibilities :
blower motor
resistors
switch(On/OFF)