Well, you can open it to find out. But mostly, you will know they are not working if the air conditioner blows hot air, or stops working all together.
Could it be because an air conditioner is not designed to produce heat?
what are the symptoms if my transmission filter is clogged on my 1992 merzades es400
how do you know if the air conditioner in your car works in the winter
look at it
fuel filter clogged fuel pump weak fuel line clogged
Because something is about to go wrong with it. You can have it looked at now and possibly prevent a failure or wait and let it die. Nobody here can tell you what it is.
The type of conditioner you use depends on the type of hair you have, Make sure you rinse any conditioner out of your hair very well, I usually tell my clients to rinse very well then when they think they've rinsed enough- switch to the coldest water you can stand and rinse again, This way your scalp will be rinsed completely and you won't have to worry about your head pores.
copper pipe
can some tell me where the port is the 1993 lexus so I can recharge air conditioner
If you suspect it is clogged, just replace it.
Can't tell from that info. .
yes when you tell us the model number so someone can tell you what the rating is.