Arrived on site customer says the outdoor Carrier system won’t turn on kept house real cool up till yesterday. He replaced the fuses in out door disconnect then called us. Thermostat is calling for cooling have 238v have 23v across contactor. Contactor should be Pulled in and turning system on. Contactor has failed at this time needs to be replaced for the system to turn on. Customer approved wired in new one system came back on. Gauged up to system to check pressures 70/240 4 degrees superheat system is functioning very well