How do you reset the G75CS its just blowing cold air,Last time I had someone out to fix it,he asked for a pin and said it just needs reset, be great if you help thanks karen

sounds like a faulty sensor

See this post on your exact problem http://ricksfreeautorepairadvice.com/car-ac-blows-cold-blows-warm/

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sounds like the compressor has died and is tripping its overload protection. Give it a good funeral, and next time, buy a brand name model.

have you had the instrument cluster programmed, if not this might be your answer. i work for iveco and e
we have to programme new instrument clusters, if it was a second hand one this also might cause the problems

Could be a list of things including low on freon, low pressure switch, relay, or the a/c clutch on the compressor.

Could be a number of things...electrical connections causing the compressor not to run. Turn on AC and turn your thermostat all the way to cool...now visually check to see if compressor is engaged and not just free wheeling. Most likely you lost your refridgerant due to leak in the system...would need to find leak and repair then have your system re-charged with refridgerant. Best case scenario...your system just needs a charge of refridgerant due to not having enough.

First check to see if your outside unit is working and you can here the compressor running. If the fan runs and the compressor does not you have a problem with the capacitor or wires burnt off terminals. If your not sure you know how to work on this please call a service tech ask for free estimate. If the unit compressor and fan runs you may be out of gas that meanns you have a leak. Either way you need a service tech. You can only go so far without the correct tools to work with. Russ

Email me on this one.
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Reset the unit by disconnecting the power supply for 10sec. and "on" again then test. If it won't work, then there is something wrong with the unit safety devices. You need a qualified tech. for this problem.