Daikin D2CND024A1AA - Page 42

D2CND024A1AA + D2CND024A4AA + D2TND012A4AA +
D2TND018A4AA + D2TND024A4AA
Wall-mounted condensing boiler
ESIE17-09 / 2017.11
Servicing manual
42
ERROR
CODE
REASON ELIMINATION
E1-70





E1-71

failure



E1-72






defective.
E1-73

error


H9-01
-
sor fault
-


multimeter connected across the

-

defective.

DHW

sensor fault

domestic hot water even if DHW
sensor is defective but for accu-




HJ-08
High system

Drain the boiler down to at least
0.8 bar. Boiler will automatically
-

HJ-09
Low system


Boiler will automatically run when


HJ-10
-
sure sensor
fault



J6-01
Flow tem-

sensor over-
heating



they are closed to allow enough




-
tance using a multimeter con-


if it is not as desired.
10 Troubleshooting
ERROR
CODE
REASON ELIMINATION
81-01
Flow tem-

sensor fault
-

-
ture sensor resistance using a
multimeter connected across the

81-65
DHW solar

sensor fault


-

solar sensor resistance using a
multimeter connected across the

cable connections of the sensor.

8A-46
-
tection



-


8H-64
Flow tem-







8H-65
Flow-return

difference
too much
-






E1-64
Flame detec-
tion before
burner

-




E1-65
Internal
-
tem error
Reset the boiler and monitor the

Activate manual calibration if error




-

E1-66

conditions
fault

E1-67
Missing
calibration

calibration.
E1-68
Ion base
value is
outside the
factory limits
or saved
incorrectly




defective.
E1-69




