Maintenance And Cleaning; To Clean The Outer Surface Of The Unit; Energy Saving Tips; Contact - Daikin D2C18ND024A5AA Manuel D'utilisation

4 Maintenance and cleaning

4 Maintenance and cleaning

WARNING

The boiler should be maintained by authorised persons
every year.
Annual maintenance cycle is very important for safe operation of
your boiler and to ensure reliable, efficient and long lasting operation
of it.
Contact your service agent for details.

DANGER

Incorrect maintenance and repairs can lead to injury and
material damage.
▪ Never attempt to perform maintenance work or repairs
on the unit yourself.
▪ Contact your service agent.
4.1 To clean the outer surface of the

unit

Clean the outer surface of your boiler with a damp cloth and a little
solvent-free soap.

CAUTION

Sprays, solvents or cleaning agents containing chlorine
can damage the exterior, the fittings or the control unit. Do
not use them for cleaning purposes.
5

Energy saving tips

▪ Operating the unit in central heating ECO mode provides the most
economical central heating operation conditions.
▪ Do not run the boiler in domestic hot water comfort mode.
Domestic hot water comfort mode involves pre- and post-heating,
which is luxury, not necessity.
▪ Close the thermostatic radiator valves when ventilating the rooms.
▪ The largest heat loss occurs through windows and outer doors.
Check windows and doors for air-tightness. Close any blinds at
night.
▪ Do not hide radiators behind large furniture (i.e. couch, desk, etc.).
Minimum 50 cm of clearance must remain, otherwise the heated
air cannot be circulated and the room will not heat up efficiently.
▪ Do not let your room become too hot. Decreasing the room
temperature during the day saves energy.
▪ Have your combi boiler's maintenance performed at least
annually.
▪ Provide your building with sufficient heat insulation.
▪ Thermostatic valves should be used. Each room should be
adjusted according to comfort conditions. For reception rooms,
this is 20°C, living rooms 22°C, kitchens 18°C and bedrooms
18°C.
▪ Prevent radiators from getting covered by curtains.
6

Contact

Contact a local competent service agent if you have any questions
regarding the maintenance and repair of your system. You can find
the contact information of our competent services at www.daikin.com
Operation manual
10
7

Error codes

# Problem
10-64 Gas valve circuit error Perform reset. If problem repeats,
contact your service agent.
10-65 Gas valve current Perform reset. If problem repeats,
error contact your service agent.
11-64 Ignition does not take Make sure valve on the gas line is
place opened. Perform reset after third
unsuccessful ignition trial.
11-65 Flame stabilisation Wait for boiler's ignition trial.
fault
11-66 Flame signal loss in Perform reset after third
safety time unsuccessful ignition trial. If problem
repeats, contact your service agent.
11-67 Flame loss during Temporary error. Wait for boiler to
operation re-ignite.
12-64 Ion control deviation Perform reset if needed. If problem
is too big repeats, contact your service agent.
12-65 Ignition SCOT Perform reset if needed. If problem
actuators fault does repeats, contact your service agent.
not take place
12-66 Ion base value Perform reset. If problem repeats,
exceeds lower factory contact your service agent.
limit
12-67 Ion base value Perform reset. If problem repeats,
exceeds upper contact your service agent.
factory limit
12-68 Ion base value differs Perform reset if needed. If problem
excessively from repeats, contact your service agent.
previous value
12-69 Offset adaption at Boiler continues operation but
limit contact your service agent.
12-70 Offset adaption not Boiler continues operation but
executable contact your service agent.
13-64 Fan speed error Perform reset if needed. If problem
repeats, contact your service agent.
13-65 Fan speed error Perform reset. If problem repeats,
contact your service agent.
16-64 Flue temperature Check flue gas discharge path.
signalise overheating
Perform reset if needed. If problem
repeats, contact your service agent.
1J-64 High limit thermostat ▪ Check the valves of the radiators
signalise overheating
▪ Check the combi boiler water
▪ Perform reset. If problem repeats,
80-01 Return temperature Perform reset. If problem repeats,
sensor fault contact your service agent.
81-01 Flow temperature Perform reset. If problem repeats,
sensor fault contact your service agent.
81-65 Domestic hot water Boiler continues operation but solar
solar temperature sensor is defective. Contact your
sensor fault service agent.
8A-46 Freeze protection Unit does not operate if flow
temperature sensor reads value less
than 1°C. Wait until the error code is
removed from the screen.
D2C18ND024A5AA + D2HND012/18A5AA
Solution
in the heating circuit.
pressure. If it is low, fill the heating
circuit with water.
contact your service agent.
Wall-mounted condensing boiler
3P469438-9H – 2018.05