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Error Code Display
1. Should there be any fault happen with the main board, the relevant error code
will be shown on the error display area and symbol
ERR
will light up.
2. If there
are
multiple faults happen
ing
at the same time, the error code
s
will be shown
one after another.
3.
T
he error codes are:-
Fault
Error code
Remarks
Room sensor #1 failure
1
Main board AD3
Room sensor #2 failure
2
Main board AD4
Room sensor #3 failure
3
Main board AD5
Room sensor #4 failure
4
Main board AD6
#1 indoor coil sensor failure
5
Main board AD1
#1 outdoor coil sensor failure
6
Main board AD2
#1 insufficient of refrigerant
7
#1 compressor overload
8
#1 low pressure failure
9
#1 high pressure failure
10
Room sensor #5 failure
11
At wallpad B
Room sensor #6 failure
12
At wallpad A
All room sensor failure
13
Water pump/float switch failure
14
Low safety thermostat failure
15
Communication failure
16
Hydronic pump switch failure
17