nilan CTS602 HMI Software Instructions page 36

The room temperature
15
is too low
16 Software error
17 Watchdog warning
Content of database
18
changed
19 Change filter
21 Check date and time
Error in air
22
temperature
Error on the
27-58
temperature sensor
Error de-icing heat
71
exchanger
Abnormal low
72 evaporator
temperature
92 Backup error
96 Error in damper test
36
When the room temperature is below
10°C, the unit will stop in order to
prevent further cooling of the house.
This may, for instance, be during a
period when the house is unoccupied and
the heating system is off.
Error in the control system program.
Error in the control system program.
Parts of the program setting have been
lost.
This may be due to a prolonged power
cut or a lightning strike.
The unit will continue to operate with
standard settings.
The filter monitor has been set at X
amount of days for check-up/change of
filter (30, 90, 180, 360 days).
The standard setting is 90 days.
Is displayed during power cuts.
It is impossible to heat the supply air as
desired (only applicable if you have an
after-heating element). The after-
heating element and the unit cannot
increase the temperature to the desired
level.
One of the temperature sensors has
either short circuited, been
disconnected or is defective.
Max. de-icing time exceeded for
counterflow heat exchanger. This may
be due to the unit being exposed to very
low temperatures.
Abnormal evaporator temperature (T6)
is due to insufficient air flow.
Error when writing or entering the
installer's settings.
Damper (open / closed) not fulfilled
Heat up the house and reset the alarm.
Contact Service.
Contact Service.
Reset alarm.
Set the desired week program.
Contact service if the unit does not
operate to your satisfaction/ as before,
as some subprograms may have been
lost. (Subprogram is only available for
service).
Clean/change filter.
Reset alarm.
The settings of the weekly clock must be
checked and adjusted if necessary.
Reset alarm.
Set a lower supply air temperature.
Reset alarm.
Register which sensor, Tx, is faulty and
contact service.
If resetting the alarm does not help,
contact service. Register the current
operating temperatures from the "SHOW
DATA" menu in order to ease the service
process.
Change filters, check outdoor air intake
is not stopped.
In case of constant fault contact service.
Contact service.
Must be unset in the Alarm