Question about Fujitsu 36CS Air Conditioner

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My fujitsu inverter does not cool below 18deg C

Model AR-RY3.

How do I get it to a cooler temperature?

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  • markr956 Jan 08, 2009

    Hi notsomot,


  • markr956 Jan 08, 2009

    Hi notsomot,

    I refer it colder. I brought 2 air cons it one and an LG. The LG is set to 18 degrees also but it is defiantly a lot colder. How accruate is the controller?

    Thanks in advance

  • Anonymous Mar 31, 2014

    louvres reset themselves facing up to ceiling



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Heya Mark,
Fujitsu air cons are factory set at 18degs you cannot change it without going through all the controller programs. Normally air cons are serpose to run around the 20deg point, is the air con not running effectually or do you just really like it cold.

I could check with tech help and see if I can send you the derictions of changing the minimum set point but it will not be good in the long run for your unit

Posted on Jan 08, 2009

  • Mathew F
    Mathew F Jan 08, 2009

    Hey again Mark,
    Okay the air cons dont read the temp from the controller they read it from the return air at the unit. 18 is very cold and you should make sure that the unit is sized at the right size. If you give me the room size with the amount of windows and such i will make sure the unit is the right size.
    Do you have any type of thermostat in your house that you can read the supply air from the air con?
    If you can get me some air measurements I should be able tell if that air con is working, because 18 is very cold :P

  • jason seng
    jason seng May 22, 2012

    check the air temp comming out of the vents. If it is around 16 to 13 deg then the ac is working fine. It may be under sized. area of room x 150watts/ sqare mt eg. 9sm x 150= 1350w / 1000 = 1.3kw



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