I posted earlier " Outside Unit will not turn on"... after reading some of the questions and answers, I think I will need to check the contactor... but, where is it located?:o

It is located in the outdoor unit. It has the 240V supply wires going into it and also a set of contacts and coil it it. Be careful of high voltage there

Thank you esqire1... If I mange to come out alive from this one, I will definitely post the result:-)