Gas and Oil Home Heating Furnaces - Air Conditioner

My Air cond. has a prob. Not getting cold air...the unit has tripped a couple times....never happened before. Now my compressor is not comimg on.......have some ability.

Older Carrier unit Model 38Se ( 3 tons )
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Tripped the breakers????? does the fan run inside and out. Was there any ice on the lines. filters clean??Does fan run outside when you say compressor dont come on, need more info ;) ED

Does the indoor fan run from the thermostat? set the stat above room temp and on cooling with the fan from auto reset breaker then to fan on position. Only the fan should run...Does it. Now with someone beside the outdoor unit set the temp for 68 it should start in less than 5 minutes or so, if not has the breaker tripped? If so Keep the breaker tripped OFF and remove the panels and look for obvious burnt stuff, put your hand on the fan motor to see how hot it is, as well as the compressor. Try spinn the fan blade it should coast easily. Look at the capacitor cans to see if they have the top of them bulged a bit outward, loose wiring ect...

Both fans are working fine. ...No ice and filter is good....Old thermostat.............Its late now but Sun. morning I'll have some more info after opening the panels and getting a good look...Thanks:)

is this a dedicated circuit to only the AC? Are the condensing unit and air handler on separate breakers? Do you have an amp meter? Has someone recently added gas? Have you washed down the outdoor coil yet this year?

THANKS FOR THE HELP..... no cigar so far...tried what I could but no meters to work with....really old stat so I'm going to pick one tomorrow and istall.....need one anyway so noharm in trying that first.........get back to you all:( :(

Before you do the tstat first. Id look out side and see if the compressor is running when the fan is running. Could be its not , just the fan now and that is why it dont blow the breakers. Could have burnt wire off the compressor or compressor cap is out. You have to ring the unit out;) ED

Thanks for the advise....Had some burnt conections in the unit........took care of them...running great now....sorry for the late reply but just got back to work after 5 months of therapy and didn't get to much of anything else....Thanks again:) :)