Ok I believe that a transformer changes voltage from x to y, either raising or lowering the voltage as required for the application. For example, the a/c charger for my phone lowers the voltage, and an inverter (like to power my laptop in my car) would raise it. If I am wrong please set me straight.
Now to the big questions . . . Is there a transformer located in the condenser (outside part) of a central air conditioning system. Is there a condenser unit manufactured in the last 15 year that requires replacement of the condenser if the transformer fails, as opposed to just replacing the transformer itself.
I am asking because my friend was told her condenser needed replacement because the transformer was bad. Yes she did have it replaced. I am asking because this sounds "suspicious" to me. I imagine that it should be relatively easy to procure a replacement transformer and install it, instead of replacing the whole condenser. She has gone to sleep so I do not have specific brand or type info except that it is what most people would call "central air" in a home about 15 years old.
I am by no means an expert so hopefully more knowledgeable people can help.
Thanks in advance, Dan