Samsung AE090JNYDEH User Manual page 55

Troubleshooting tips
If the unit has some problem to work properly, error codes will be displayed on the wired remote
controller. The following table describes the explanation of the error codes.
Display
EVA Inlet temp sensor SHORT or OPEN
EVA Outlet temp sensor SHORT or OPEN
Wired remote controller temp sensor SHORT or OPEN
Water Inlet temp sensor SHORT or OPEN
PHE Outlet temp sensor SHORT or OPEN
Water outlet (Back up Heater) temp sensor SHORT or OPEN
Water TANK temp sensor SHORT or OPEN
Mixing valve temp sensor SHORT or OPEN (When FSV #4041 "1 or 2")
Water Outlet
Back up Heater
E903
Water Inlet
E901
Explanation
Heater
PHE Outlet
E902
Tw3
Tw2
PHE
Tw1
Hydro Unit
Wired remote controller
temp sensor
E653
EVA Outlet
E123
Ref' Out
EVA Inlet
E122
Ref' In
Water tank temp sensor
E904
55
English