Would a bad ac compressor cause coolant to leak and schrader valves to go bad?

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Dealership replaced compressor July 2018 air was blowing warm but sometimes would blow cold July 2019 noticed coolant on ground checked out by dealership and found no problems October 2019 having same issue with ac warm air Dealership said the schrader valves are bad and also the compressor that was installed last year is bad