Overheated Trane 1200 Compressor
We have a two-zoned central AC units. The compressor for the upstairs zone works normal. We are having problem with the downstair unit. The compressor some times does not start and some times trips the breaker switch. After replacing the breaker switch (40 Amps) it was running and cooling fine for 2-3 days. This morning I heard it was making a strange screeching noise while it stopped. It was super heated and I felt hot air coming out of it even when it was not running. So I turned it off. Please tell me what might be the reason for the compressor to be hot when it is not running. Is it safe to turn back on?