Daikin EKRTCTRL2 [23/24] Troubleshooting
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Daikin EKRTCTRL2 [23/24] Troubleshooting

Daikin EKRTCTRL2 [23/24] Troubleshooting
23
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7.4
7.5
TROUBLESHOOTING
Troubleshooting
Troubleshooting table
In the event of water leaks or anomalous operation,
disconnect mains power immediately and close all
water taps.
If one of the following anomalies should
occur, contact an authorised service centre
or qualified personnel, do not try to repair yourself.
- Ventilation does not start even if there is hot or cold
water in the hydraulic circuit.
- The device leaks water when heating.
- The device leaks water only when cooling.
- The device makes excessive noise.
- Rust is forming on the front panel.
Maintenance must be carried out by a qualified installer or
by a specialised service centre.
Effect Cause Solution
Ventilation takes a long time to start
when new temperature settings or
anew mode is activated.
The circuit valve needs time to open
and to let cold or hot water circulate.
Wait 2 or 3 minutes for the circuit valve
to open.
The device doesn't start ventilating. No hot or cold water in the system.
Check that the boiler or the water cooler
are working.
Ventilation does not start even if there is
hot or cold water in the hydraulic circuit.
The hydraulic valve stays closed.
Disassemble the valve body and check
and restore water circulation.
Check that the valve is working by
powering it up separately from a 230V
supply. If it starts working, the problem
may be with the electronic controller.
The fan motor is blocked or burned out.
Check the motor windings and that the
fan can turn freely.
The microswitch that stops ventilation
when opening the filter grill doesn't
close properly.
Check that closing the grill closes the
contact on the microswitch.
Electrical connections are incorrect. Check the electrical connections.
The device leaks water when heating.
Water leakage from the system
plumbing.
Check for leaks and tighten all
connections.
Leaks from the valve group. Check the seals.
Rust is forming on the front panel. Thermal isolators detached.
Check that the thermal sound isolators
are positioned correctly, paying
particular attention to the one positioned
at the front above the winged battery.
Water droplets are forming on the grill
and the air outlet.
In high relative ambient humidity (>60%),
condensation may occur, especially
when the fan is at its minimum speed.
As soon as relative humidity decreases,
the problem will disappear. In any case,
should some water droplets fall inside
the units, it does not mean that there is
a malfunction.
The device leaks water only when
cooling.
The condensation tank is blocked.
Slowly pour a bottle of water in the lower
part of the battery to check drainage; if
required, clean the tank and/or improve
the incline of the drain tube.
The condensation drain does not have
sufficient incline to drain.
The connection pipes and valve group
are not well isolated.
Check pipe insulation.
The device makes excessive noise.
The fan is touching the structure.
Check for dirt in filters and if necessary,
clean them.
The fan is unbalanced.
An unbalanced fan causes excessive
vibrations in the machine: replace the
fan.
Check for dirt in filters and if necessary,
clean them.
Clean the filters.

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