Drain line is tied into a 2 inch drain line and the clog is in the 2 inch line a plumber is needed to come clear this line. Left disconnect off so unit does not condensate and informed the customer of this. Customer also elected to not to any repairs including the drain line. Checked rest of system found cap is low and contactor is reading very high. Outdoor coil is very clogged. Customer stated he will call and schedule a plumber. I left everything as it was before I arrived but did turn this disconnect off. No work completed other than troubleshooting. Couldn’t clear drain line due to clog being in the plumbing line.