E-
32
If the unit has some problem to work properly, the LED on hydro unit will flash and some error codes will be dis-
played on the controller.
The following table described the explanation of error codes on the LCD display.
Display
Explanation
Wired remote controller thermistor SHORT or OPEN
FRAM Read/Write Error(Wired remote controller data error)
Water Inlet thermistor SHORT or OPEN
PHE Outlet thermistor SHORT or OPEN
Water Outlet thermistor SHORT or OPEN
Water TANK thermistor SHORT or OPEN
Thermistor
X
Check its resistance. 10kohm@24°C (Hydro unit), 220kohm@24°C (DHW Tank, Solar)
X
Check its location as shown at the diagram.
X
Check its contact status with pipe.
X
Final solution is to change parts
5X
5X
5X
Water Out
Water In
Water Outlet
thermistor
E903
E902
Water inlet
E901
Wired remote controller
thermistor
E653
Water tank
thermistor
E904
PHE Outlet
Troubleshooting
Summary of Contents for AEN160YDEHA
Page 1: ......
Page 11: ...E 11 ENGLISH Dimensional drawing 131 7 78 5 103 7 104 0 125 0 490 22 0 39 2 850 0 510 0 314 6 ...
Page 22: ...E 22 Wiring diagram AEN160YDGHA Wiring work Continued ...
Page 23: ...E 23 ENGLISH Wiring diagram AEN160YDEHA AEN080YDEHA ...
Page 38: ...E 38 DHW tank Continued Accessories Leg 3 Anode bar 1 Conduit 1 ...
Page 48: ......