114
Check
code
Diagnostic functional operation
Determination and action
Number of
abnormalities
for
confirmation
Detailed
item
Operational cause
Backup
operation
Automatic
reset
A09
Overheat protection operation
1.
2.
2
112
3.
1
A10
Antifreeze operation (2)
O
1.
2.
3.
10 113
A11
Operation of the release protection
Hot water
O
1.
2.
3.
4.
10 114
A12
Heating, hot water heater failure
O O
1.
2.
1 115
A13
Pump failure
1.
Mainly low voltage to the system.
2 116
A14
Pump failure
1.
Mainly except low voltage to the
system.
2 116
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