Forum Discussion

Gsragtop's avatar
Gsragtop
Explorer
Jun 29, 2014

AC upgrade, questions and issues.

So as some will remember I'm the guy who purchased a brand new 2015 TT, and was sorely disappointed with the performance of the factory 8,000 btu wall unit..

After going back and forth with the dealer/manufacturer it because obvious this was a me issue and not a they issue. So I found a 12,000 btu unit that was similar in hight, and width, but 6 inches longer in depth.. I spent all day rengnering the box that holds the ac and did get it monted., Great news is when I'm done it should look close to factory.,

So my questions/issues.

1) about two weeks ago another member posted a question about the black vent on the roof of his unit above the ac.. The general consensus was that it was a vent for the AC so it could breath.. When I removed my unit from the hole, I was surprised to see a solid roof above it.. No vent at all??? Is this an oversite or is this correct ?? I also have the vent on mine.

2) after getting the unit up and secure the first thing I did was plug it in to see if it worked.. It would run for about a min and then click the compressor off, and then start the compressor again about 3-4 min later for another min. At first I'm thinking FUDGE bad unit.. However after thinking about it some more, I was running the unit on a very long extension cord then thrugh a 15 amp-30amp adaptor. Could my issues be due to a power issue?? I tried another extension cord which I think is a higher gauge with a built in curcut beaker and it tripped after about 3 min., if that helps

Thanks again in advance. I have a few other questions I'm trying to figure out. Will post later.
  • Gsragtop's avatar
    Gsragtop
    Explorer
    Jun 29, 2014
    Tequila wrote:
    15 amp is probably not enough for a 12000 BTU A/C especially if you are at any altitude. 9200 is about the max for 15 amps. The wiring can catch fire if you use an adapter and plug into 15 amp service. I remember a dealer using a 15 amp adapter on a unit with a 13.5 A/C and stuffing it in the power box. It caught the RV on fire. Some modern RV A/C's will shut down if they cannot draw enough current to run, before the breaker at the other end pops, even. I think that is your problem. As to the venting, You have to vent it somewhere. A/C's produce heat, which is how they cool. Surely it vents outside through the wall.


    Yes it vents out the back, but the rest of the unit is boxed in.. I assumed the vent on the roof was to allow air flow to the rest of the box, again I always just assumed there was a hole above the unit where air could get in and out. I guess I was wrong.
  • Tequila's avatar
    Tequila
    Explorer
    Jun 29, 2014
    15 amp is probably not enough for a 12000 BTU A/C especially if you are at any altitude. 9200 is about the max for 15 amps. The wiring can catch fire if you use an adapter and plug into 15 amp service. I remember a dealer using a 15 amp adapter on a unit with a 13.5 A/C and stuffing it in the power box. It caught the RV on fire. Some modern RV A/C's will shut down if they cannot draw enough current to run, before the breaker at the other end pops, even. I think that is your problem. As to the venting, You have to vent it somewhere. A/C's produce heat, which is how they cool. Surely it vents outside through the wall.

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