Tuscan S aircon not working

[macky17]

Has been regassed but still no response to the button in the engine bay. Should I just take it to any decent generic aircon specialist or is there simple stuff to check first? I don't need a tvr specialist for this do I? Thanks folks.

[Tuscanuwe]

Check the connection of the switch at drivers side in wing lamp aera.
I think ist a low/high pressure switch at the dryer
I had a broken soldered connection.
Was hard to find this fault

Uwe

[macky17]

Thanks Uwe. I'll give it a try.

[nawarne]

Uwe refers to the "Trinary Switch".

Classic indication of failure of this component is that the drivers side rad' fan comes 'ON' as soon as you turn ignition on.

I reckon that a GOOD aircon chap could diagnose any problems.

Couple of things: does the compressor clutch 'engage' when you click down heat setting knob to bring the blue led indicator on? If the compressor is not running then you wont refrigerate the air. Non running of compressor indicates low gas charge...you may have a refrigerant leak...A good aircon specialist should - evacuate system, hold vacuum for 30 mins(?)to check for leaks, then refill system with exact amount of refrig' gas and lubricant.
Have you got rotary knob thingy under pass. side 'shelf' turned fully clockwise? Knob has small capillary p/work attached.

I'm not 100% certain, but has the heater ECU been changed...and is it for an aircon car? Don't know whether this applies though.
Nick

[sjc]

Macky,did you get this sorted, I know a local Air-con guy if you need one?

[gralin69]

I know you have said S but on Mk1 passenger side Bulkhead behind carpet below dash there is a thermostat with a capiliary tube leading off somewhere just bridge that stat and see if Air-Con works info in here.
http://www.varleyhyd.com/FJ062.asp
good luck