R32 Air Con Thermo Fans

[neo32]

hey just curious i havent seen mine com on in years

i here its got somthing to do witht he air con

but also its trigerd by the water temp switch in bottom of radiotor any one know what temp activates this switch for the thermo fans to kick in

thanks in advance

[mad082]

they are an over temp fan, designed to come on if the car gets too hot.

[neo32]

yeah at what temp do they come on

[mad082]

not sure exactly, but it's hot. like cooling system not working kind of hot. hotter than you should see in everyday driving if everything is working properly

[MrStabby]

I was told by an air con guy that is it for the aircon (there's only one fan right?), and will comes on when the refrigerant gets too hot (ie when you're in traffic). So there must be a temperature switch in the refrigerant piping somewhere. Mine comes on, but a bit too late (ie after i'm getting ambient termperature air from the vents). You could try carefully blocking all airflow through the heat exchanger then putting the aircon on max and it should come on eventually - might take five mins or so of idling.