No cool- One system down flow R22 system converted to R421A. Found thermostat intermittently failing and not communicating with equipment. Ran diagnostics on all electrical components and refrigerant charge. High voltage wiring conduit wasn’t connected properly at disconnect for outdoor equipment. Missing insulation on suction at outdoor equipment. Blower motor has significant amount of build up/debris. System is low of refrigerant. System has drop in replacement refrigerant (R421A) used in place of R22. Recommend replacement of entire system due to refrigerant loss and other repairs needed. Did not have replacement Honeywell thermostat on service truck….. running to office to pick up inventory then to return to install new thermostat. Client elected to replace her existing system and install a new heat pump. We applied for financing with John Browder. Finance was approved. We will contact Jean with eta for new system install. We will include new thermostat wire to outdoor and indoo