Alarm list
Comfort unit
Alarm list
The first column in the event log shows whether the event relates to master (M) or slave (3).
The list below relates to Comfort, and the events are divided into the following categories:
Info
Information
Normal operation is unaffected and no information is shown on the display.
Warning
Operation continues, but something no longer functions optimally.
Critical
Operation has stopped partially or completely, as a serious error requires
immediate attention.
ID
Type
Display text
Description / cause
Rectification of error
1
Hardware
error
Error in the hardware of the control system.
If resetting does not help, contact service.
2
Alarm
timeout
A warning alarm has become a critical alarm.
Register alarm and reset.
If the alarm does not disappear, contact
service.
3
Fire alarm
activated
Fire thermostat. The unit has stopped
because the fire thermostat has been
activated.
If there has been no fire, contact service.
7
Frost in after-
heating
element
Temperature sensors:
Units without a T9 sensor: Frost thermostat in
water heating element triggered.
Units with a T9 sensor: Water heating element
could not reach 20°C within 6 min.
Check for adequate insulation around the
water heating element and its connections.
Reset alarm.
8
Frost
thermostat
triggered
Temperature sensors:
Only on units with a T9 sensor: Frost
thermostat in water heating element
triggered.
Check for adequate insulation around the
water heating element and its connections.
Reset alarm.
10
Info
Overheating
of electrical
after-heating
The electrical heating element has
overheated. Lack of airflow due to, for
instance, blocked filters, blocked air intake or
defect supply air fan.
Check that air blows into the dwelling.
Check the filter and the air intake.
Reset alarm.
If the above does not help, contact service.
11
Info
Low flow over
the electrical
heating-
element
Lack of airflow in supply air.
See alarm code 10.
See alarm code 10.
15
The room
temperature
is too low
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.
Heat up the house and reset the alarm.
16
Info
Software
error
Error in the control system program.
Contact Service.
17
Info
Watchdog
warning
Error in the control system program.
Contact Service.
Comfort 252 / 302 Top / Polar (English)
BY NILAN
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