No heat. Check and find 3 year old carrier furnace operating normal. Find condensation pump full of water and tubing frozen clogged drain. Remove 3/8 tubing and replace condensation pump with new tubing and run drain to main house drain line to prevent freezing and wire up water safety. Repalce dirty and molded water panel #35. Replace dirty filter with AA810. Sign up 1 CCI plan and complete heating PM check. System operating at this time.