A/C blows hot air?

I had it checked and recharged last summer. Then it went back to the same problem. Even now though (although its still cooler temperatures outside) I will try the AC and it will come out cold for a minute or two, and then go back to warm. When the shop did the AC recharge last summer, on one phone call during the repair, they mentioned that they thought some part of the AC system was freezing up and they needed to wait for it to maybe thaw out before testing again.

Before you do anything, check your A/C magnetic clutch relay in the fuse box. Usually a small white cube in the box under the hood. It is less than $30.00 to buy a new one and pop it in. His fixed my intermittent A/C. On tearing relay apart, contacts were rough and carboned.

My a/c over several days started blowing out warm air. I replaced the cabin filter, and now it blows fairly cool air out of the passenger side, but still blowing warm air from the driver's side. I requested the Toyota dealer give me a coolant charge, and he says he need to do a diagnostic test, that it must be an electrical problem. Starting price $100. Does the Toyota often have an electrical problem related to the a/c unit? Should I just get a coolant system flush. What do you think?

Intermitent problem with air conditioner. It does not work everytime I turn on the a/c. It does turn on spontaneously when switched on and when it works, cold air blows and light turns on as expected. When not on, the fan works when turned on. Dealer has tried to change the clutch relay. Problem still persists. Now they want to rewire the air conditioner to cost $350. Please help. :(

You are not alone. I used this guide to fix my car

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak