Forum Discussion

hogcard's avatar
hogcard
Explorer
Jul 19, 2013

Air Cond set to "auto" or "on"?

So today we downsized, trading on our Cougar 29RLS for a new Jayco 24T. During the service walk-through in the new TT, the serviceman specifically said to always leave the AC on auto and high fan.

It was my understanding reading several topics on this in past that you should always have the AC set to "on" instead of auto to keep air moving at all times.

He said if we do this, the condenser will not cycle like it should and will freeze up. I thought just the opposite. I thought having the AC cycle on a off did not allow enough air to circulate thus causing condensation and freeze up.

What do I do? The wife likes the auto and I like always on because I like the noise of the AC running all night and drowning out noise, etc.
  • therink's avatar
    therink
    Explorer
    Jul 19, 2013
    I leave mine on auto during the day. If it's hot out it never shuts down anyway. While sleeping o leave it on because it keeps temps consistent and white noise helps us sleep.
  • rvten's avatar
    rvten
    Explorer
    Jul 19, 2013
    Auto just like at home. It will on/off as needed.
    Why would you want to listen to noisy A/C unit. Same if it has a Heat Pump.
  • Mark_and_Linda's avatar
    Mark_and_Linda
    Explorer
    Jul 19, 2013
    During the day we use the auto setting on our Puma 25RS at night we use the on setting because the DW likes to have the air flow. I told her I was not going to install a ceiling fan. No problems with ours in two years, last year the temps were in the 90-100 range when we camp for a week, no freeze ups. In the on mode, the fan is running all the time.
  • Doug33's avatar
    Doug33
    Explorer
    Jul 19, 2013
    My last TT had A/C that was either on or off, with manual dial for temperature. So it ran constantly. The new TT is digital thermostat, so it allows me to run it just like home, with A/C only kicking on when needed. It took until our second trip to figure that out, though.
  • hogcard's avatar
    hogcard
    Explorer
    Jul 19, 2013
    I like the white noise also, and just like you guys, in my Cougar we ran on "auto" in the daytime. Never froze up on us at night running on "on". But since my wife heard the service guy say this, I am going to have a hard time getting her to allow me to run "on" at night anymore.
  • Akeru's avatar
    Akeru
    Explorer
    Jul 19, 2013
    I use the auto during the day, but at night I leave it on. If I don't, when it kicks on, it wakes us and the constant noise helps us sleep and drowns out any outside noise. I have done this 4 summers now and my Jayco is a 2006....no problems.

    Read the manual and see what it says.
  • hogcard's avatar
    hogcard
    Explorer
    Jul 19, 2013
    smkettner wrote:
    Wall thermostat or ceiling controls? What brand air unit?



    Wall thermostat. Not a digital...yet. I will be switching it out. I already put the camper in storage. Didn't get he model of AC unit. Seems like the regular 13,500 unit.
  • Farm_Camp's avatar
    Farm_Camp
    Explorer
    Jul 19, 2013
    "He said if we do this, the condenser will not cycle like it should and will freeze up. I thought just the opposite. I thought having the AC cycle on a off did not allow enough air to circulate thus causing condensation and freeze up."

    Ummm... Not if the unit is maintained and in good working order. Unless maybe you are running it when it's in the 40s or 50s I guess.

    Use it the way you want and are most comfortable. A unit freezing is a sign that something is wrong (dirty, airflow blocked, maybe a referigerant leak, bad fan.) a unit in good working order in most normal conditions won't freeze.

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