Air Conditioner intermittently not working

[Gr8Pmkn]

On our 2014 LC200 the AC intermittently not working as in not blowing cold. This is the second time in the last week this has occurred and I'm not sure where to look. A week or so when it first happened the only thing I noticed was the antifreeze was a little low, filled and coincidentally the AC started working normally. Today it worked normally this morning driving into the city, on the return it is no longer blowing cold. Nothing seems off, no error codes.

Not sure where to look, would appreciate any suggestions. Is it possible it needs a recharge and is borderline on refrigerant? No other thoughts.

Thanks in advance.

 

[hedd]

Probably a long shot, check the rear ac lines. If you get under the back of the LC on the drivers side you can see the AC lines going up in to the cabin. Mine were leaking which caused the rear AC to quite working but it would sometimes come back on. My front AC worked the whole time. I think the lower pressure at the far end of the system caused the problem but I am by no means an AC guy!

Mine needed the line fixed and the system pressurized. It probably only needed a o-ring but Mr T in my area doesn't seem to be the best.

 

[Gr8Pmkn]

It appears to be the pressure switch that was bad.