Today I showed up for an evaluation on a 7-year-old heat pump unit that was only operating an emergency heat upon my arrival the unit was flat on refrigerant reading zero PSI added a little refrigerant so I could leak check the outdoor unit the previous repair to the condenser coil is holding just fine found no leaks on the outdoor unit so I went to look at the evaporator coil and found the leak there we are ordering an evaporator coil under warranty as soon as we get it we will call the customer back to schedule replacement unit is operating with emergency heat at the moment and satisfying the thermostat