Hydronic Highwall
Installation 25
Malfunction code Malfunction
EE
Water-level alarm malfunction
E2
T2 evaporator sensor malfunction
E3
T1 evaporator sensor malfunction
OK
OK
EE: Water-level alarm malfunction
Exist
OK
Water-level switch connecting
wire between switch and main
Reconnect and ensure
that the connection is
reliable.
There is something wrong
with the water-level switch
Exist
Chip fault, or chip foot sheds off, or chip is
inverted (correct mode is semicircular bent
alignment)
Error
Reinstall chip, or install other chip
with same model on the faulty unit,
to check whether there is
something wrong with chip.
Mainboard error:
For example, getting wet