Cx complaint is that the unit in not cooling properly. Upon arrival I found that the unit had been unplugged but prior to that the unit had frost built up. I removed the evap cover and found that the unit began developing a frost pattern when plugged back in. I let the unit begin cooling and then tested the thermistor and found that the thermistor was reading 5.04 K Ohms when I tested it. The unit will need the defrost thermistor. I quoted the cx for the cost of the repair. Cx is awaiting the POP to arrive in the mail. When that arrives the cx will send it to the service email.; saved tckt