Disassembly and Reassembly18Samsung ElectronicsNoPartsProcedureRemark2) Remove 4 Thermostats.3)Remove the Thermostat connector on thePCB of the Control box.4)Remove the pipe from the Backup Heater.(Use adjustable wrench-380kgf·cm)Use the Torque Wrench when youassemble it.5) Remove 6 screws. (Use + Screw Driver)6) Pull the PHE out of the unit.