Troubleshooting - Daikin D2CND028A1AA Servicing Manual

10 Troubleshooting

10 TROUBLESHOOTING
ER-
ROR REASON
CODE
Gas valve
10-64
circuit error
Gas valve
10-65
current error
Ignition does
11-64 not take
place
Flame stabili-
11-65
zation fault
Flame signal
11-66 loss in safety
time
Flame loss
11-67 during oper-
ation
Ion control
12-64 deviation is
too big
Ignition
SCOT ac-
12-65 tuators fault
does not take
place
Ion base val-
ue exceeds
12-66
lower factory
limit
Servicing manual
40
ELIMINATION
Interrupt the power. Check electri-
cal leads of the gas valve and the
gas valve. Replace the defective
part.
Interrupt the power. Check electri-
cal leads of the gas valve and the
gas valve. Replace the defective
part.
Blockage error, restart is not
needed. After third trial, error turns
to lockout, in that case reset is
needed. Check the inlet gas pres-
sure. Make sure main gas valve is
opened.Check the ignition elec-
trode and the ionization electrode.
Check ignition transformer. Check
the gas valve. Check the wire har-
ness. Replace the defective part,
if there are any. Also, check if the
condensate trap is blocked. Check
if the flue duct is installed correctly.
Blockage error, restart is not need-
ed. Check the inlet gas pressure.
Check the ignition electrode and
the ionization electrode. Check
ignition transformer. Check the gas
valve. Check the wire harness.
Replace the defective part, if there
are any.
Also, check if the condensate trap
is blocked. Check if the flue duct is
installed correctly.
Blockage error, restart is not need-
ed. Check the ionization electrode.
Check the gas valve. Check the
wire harness. Replace the defective
part, if there are any. Also, check
if the condensate trap is blocked.
Check if the flue duct is installed
correctly. If problem continues,
activate calibration as described in
this manual.
Blockage error, restart is not need-
ed. Check the ionization electrode.
Check the gas valve. Check the
wire harness. Replace the defec-
tive part, if there are any.
Also, check if the condensate trap
is blocked. Check if the flue duct
is installed correctly. If problem
continues, activate calibration as
described in this manual.
Reset the boiler Make a manuel
calibration.Check the ionization
elecktrode, it's cable connection
and it's earth cable.Replace, if
defective.
ER-
ROR REASON ELIMINATION
CODE
Ion base val- Reset the boiler Make a manuel
ue exceeds calibration. Check the fan and
12-67
upper factory it's cable connection ,replace if
limit defective.
Ion base
value differs Check the fan's suction side.Check
12-68 excessively the gas valve and it's cable connec-
from previous tion, replace if defective.
value
Reset the boiler Make a manu-
Offset adap- el calibration. İncrease the C5
12-69
tion at limit parameter value.İf problem repeats
replace the PCB.
This is a warning error. Boiler con-
tinues operation but waits the next
Offset adaptation. If the location is windy
12-70 adaption not and this error repeats, increase the
executable parameter "Adjustment minimum
capacity (C04)". Increment can be
2% at each trial.
Reset the boiler, if needed. Check
the silencer-fan connection and be
sure that fan suction is not blocked.
Fan speed
13-64 Check fan and it's cable connec-
error
tions for interruptions and shorts,
replace if defective. If error is still
present, replace the PCB.
Reset the boiler, if needed. Check
the silencer-fan connection and be
sure that fan suction is not blocked.
Fan speed
13-65 Check fan and it's cable connec-
error
tions for interruptions and shorts,
replace if defective. If error is still
present, replace the PCB.
Check if the flue duct installed cor-
Flue tem- rectly. Check flue gas path against
perature blockage. Check flue temperature
16-64
signalize sensor resistance using a multime-
overheating ter connected across the thermis-
tor's terminal pins.
Check the radiator valves on the
central heating circuit, open them
if they are closed. Check high limit
High limit thermostat cable connections for
thermostat interruptions or shorts, replace if
1J-64
signalize defective. Check pump max capac-
overheating ity (P08), increase the parameter
value to 100% if it is not. Check
by-pass valve and plated heat
exchanger against blockage.
Check continuity between the sen-
sor and PCB, replace wire harness
Return
if necessary. Check flue tempera-
80-01 temperature
ture sensor resistance using a
sensor fault
multimeter connected across the
thermistor's terminal pins.
D2CND028A1AA + D2CND028A4AA + D2CND035A1AA +
D2CND035A4AA + D2TND028A4AA + D2TND035A4AA
Wall-mounted condensing boiler
ESIE17 - 09 / 2017.11