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Re: Robinair 34700z a/c machine
Posted to HVAC Forum on 6/11/2019

Our old one used to do that. We found we needed to leave it ON and undisturbed, overnight. We had been unplugging it immediately after every service and it never got to do it's self-check and purge procedures. Not saying that is your issue but it's a free try.... Login to read more.