The one and only problem I’ve had with my A/C was a faulty expansion valve located under the cowling near the A/C fill valves. It had stuck open and would freeze up then thaw and freeze again producing conditions similar to yours.
The fix was a new valve from Rock Auto for about $30 CDN and a refill of the Freon since you need to depressurize the system to swap out the valve.
Good luck.
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