If the unit has some problem to work properly, the LED on hydro unit will flash and some error codes
will be displayed on the controller.
The following table described the explanation of error codes on the LCD display.
Check its resistance. 10kohm @ 24°C
Check its location as shown at the diagram.
Check its contact status with pipe.
Final solution is to change parts.
EVA Inlet thermistor SHORT or OPEN
EVA Outlet thermistor SHORT or OPEN
Wired remote controller thermistor SHORT or OPEN
FRAM Read/Write Error(Wired remote controller data error)
Water Inner thermistor SHORT or OPEN
Water Outlet thermistor SHORT or OPEN
PHE thermistor SHORT or OPEN
Water TANK thermistor SHORT or OPEN
SOLAR thermistor SHORT or OPEN
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