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Air Conditioning in Hot Weather

  • 03-06-2011 1:25pm
    #1
    burly
    Registered Users, Registered Users 2 Posts: 314 ✭✭


    Hi all,

    What a flippin scorcher today, 25C in Waterford today.

    Anyway noticed something today in my Avensis. When i turned on the Air Con to cool me down in traffic, the cooling fan in the engine came on intermittently, i.e came on for 10 seconds, off for 10 seconds, on for 10, off for 10 and so on. Turned off the AirCon and the cooling fan in the engine didnt come on again, and it only comes on when the Air Con is on.
    (Engine Temperature is fine, and coolant level is fine by the way)

    My Question is:

    Is this normal in these temperatures?


Comments

  • #2
    Tea 1000
    Registered Users, Registered Users 2 Posts: 4,520 ✭✭✭Tea 1000


    Yep. They all behave slightly differently, but that's not unusual. The Celica I had a few years back did the same.


  • #3
    ofcork
    Registered Users, Registered Users 2 Posts: 5,442 ✭✭✭ofcork


    My avensis 04 seems to do the same thing.


  • #4
    vectra
    Registered Users, Registered Users 2 Posts: 15,626 ✭✭✭✭vectra


    No Idea. I leave the climate control on all the time


  • #5
    kirving
    Registered Users, Registered Users 2 Posts: 6,127 ✭✭✭kirving


    The temperature must have been going just past the threshold when the fan kicks in. If it was a little hotter, the fan would have stayed on.


  • #6
    mcwhirter
    Closed Accounts Posts: 1,432 ✭✭✭mcwhirter


    Is it not the fan for the aircon only. Some cars have seperate fan.


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  • #7
    shedweller
    Closed Accounts Posts: 4,029 ✭✭✭shedweller


    The fan comes on to take the heat away from the cabin, via the refrigerant loop. In cool weather you might find the fan doesn't come on at all. This being due to the aircon rad being cold enough to take the heat away all by itself.
    In hot weather, as Kevin Irving said earlier, the fan will come on a lot more or all the time. this is simply because there is a lot more heat to dump, or your aircon has run low in gas.....:eek:


  • #8
    Damien360
    Registered Users, Registered Users 2 Posts: 6,782 ✭✭✭Damien360


    burly wrote: »
    Hi all,

    What a flippin scorcher today, 25C in Waterford today.

    Anyway noticed something today in my Avensis. When i turned on the Air Con to cool me down in traffic, the cooling fan in the engine came on intermittently, i.e came on for 10 seconds, off for 10 seconds, on for 10, off for 10 and so on. Turned off the AirCon and the cooling fan in the engine didnt come on again, and it only comes on when the Air Con is on.
    (Engine Temperature is fine, and coolant level is fine by the way)

    My Question is:

    Is this normal in these temperatures?

    My 07 avensis does the same. Not a problem at all. You will also notice the engine revs on dial go up and down a little also as this happens but not noticeable in engine sound. Eats fuel when air con in use.


  • #9
    Stinicker
    Banned (with Prison Access) Posts: 7,102 ✭✭✭Stinicker


    Damien360 wrote: »
    My 07 avensis does the same. Not a problem at all. You will also notice the engine revs on dial go up and down a little also as this happens but not noticeable in engine sound. Eats fuel when air con in use.

    My car does the same also, not a Toyota though.


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