3/19/25 Technician took heat exchanger out, took it back to shop to clean, where techs were not able to clean it out completely. Mark W has ordered new heat exchanger, technician went back to put furnace back together, made it work for AC, furnace is down on heat side, technician will need to come back when new heat exchanger is in, tech confirmed AC side is working. Homeowner is aware furnace is down. MARK W ORDERED HEAT EXCHANGER WITH ROB