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fan kicking in and out when a/c on

my fan kicks in and out when a/c is on.it will do that all day long once in a while it will stop and kick in when its suppose to but pretty much it will kick in and out like every 10 seconds as long as a/c is on.now if i turn a/c off then it will kick in normally when it suppose to.this all started when i put freon in it i did overcharge it where the a/c compressor started to start and stop constantly so i let freon out of it then compressor started to work fine but then this problem with fan started.

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thanks guys i will have check i appreciate your answers...thxs

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'''You say that when you turn the a/c off it kicks in and out when it's suppose to....the only reason the fan should kick in with the a/c off is if the water temp gets up to 205-210 degrees. Is that when it kicks in?

Now with the a/c on it would kick in when the high side freon pressure kicks the switch in. If you have too much freon in the system it will cause this to happen. Need to have someone put a set of gauges on your system and read the pressures....'italic text''

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fan will turn on when high side pressure is at 375 to 425 psi, check with gauges. condenser might be dirty not allowing air to pass tru. TEST DON'T GUESS

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That's normal... As the pressure builds, the fan pulls air through the condenser, which is located on the front of the radiator, and looks just like the radiator. Its the same concept as a heat pump for your home. The fan pulls air through the condenser to cool and reduce the pressure. There's nothing wrong, its normal...

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are you using a pressure gauge, its possible when you over charged it caused a pressure sensor to malfunction.what was the original problem and how much did you add to the system.

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i think you still have to much freon in the system had that problem with my truck after i topped up the freon myself can easily happen when u dont use the proper equipment to recharge your system!

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probably have air in the system, fan is actuated by high side pressure

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When your running your AC look at the line that has frost going into the compressor if the frost stops 1" before going into compressor your fine. If the frost goes into the compressor overcharged.

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Take it to a shop, you will damage the compressor if you keep guessing Try an air cond only shop not a dealer, they will charge you way more than you can imagine! I have my own machine and help local small O/O with there a/c problems. The R134 is very sensitive to amount in system and will damage parts, the old R12 was not so critical you just put in until it got cold and it worked, the 134 is not so forgiving. Go to a shop, also letting the freon into the atmosphere is a big no no, you can get fined and even jail time from the EPA if your caught. Good luck get it done the right way.

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when i use a/c and don't put fan on manually my boss will yell at me.A/C ON FAN ON!

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