Tech came out to perform maintenance on 5 systems checked all safety’s and components. Cleared drain lines with 2 gallons of drain cleaner. While performing maintenance tech noticed the following. Main Basement: cracked heat exchanger, dirty blower failed , no safety switch’s blower motor need to be replaced. No drain pan , EAC filter cleaning , condenser cleaning , contactor , cap 55/5 reading 0/4.8 , duct cleaning . Bedroom basement , cracked heat exchanger, blower wheel cleaning , no safety switches , no drain pan , contactor , condenser cleaning , cap 30/5 , EAC filter cleaning. Based on our findings today, it might be time to think about getting a brand new system. Monday 8-10