Alarms And Troubleshooting; Alarm Indication, Cooker Hood; Alarm Indication, Control Panel; Troubleshooting - Swegon CASA R3 Smart Installation, Commissioning And Maintenance Instructions

7. Alarms and Troubleshooting

The unit has inbuild diagnostics for malfunction and protective functions to prevent damage. Malfunction is indicated
with alarm in cooker hood, user interface and with digital relay outputs. This section contains description of alarms, ac-
tions and troubleshooting. Most of the actions listed in alarm description table is allowed only for qualified person with
needed permissions.

7.1 Alarm indication, cooker hood

If the ventilation unit detects critical alarm, all signal
lamps on the cooker hood blinks three times every 30
seconds.
Following alarms are indicated:
• Sensor fault
• Supply air hot
• Internal overheat
• Supply air cold
• Water radiator freezing protection shutdown
• Repeating post heater fail
• Repeating preheater fail
NOTE! The service reminder is indicated with one blink-
ing damper timer signal lamp.

7.2 Alarm indication, control panel

If the ventilation unit detects alarm or info message it is
indicated in the user panel main screen. The symbol for
an active alarm is . The malfunction that has caused
the alarm is shown in the menu (Main menu / Alarm).
Info message indicates unconfirmed alarms when the
malfunction is fixed. Info message also indicates the set
service interval has elapsed. The Info message can be
reset from the Alarm menu.
!
Important
Frost protection function
Ice can form in the heat exchanger during
periods of cold weather if the extract air
is humid. A protective function then auto-
matically reduces the speed of the supply
air fan. Under such conditions, variations in
the fan speed are therefore normal.
Under such conditions, small amounts of
ice can form inside the ventilation unit.
26 www.swegon.com

7.3 Troubleshooting

Troubleshooting and service
instructions:
www.casahelp.fi
A ventilation system is composed of several system
components which all influence how the system
operates. A malfunction in ventilation performance
could be caused by any system component or fail in
installation, commissioning or service.
The unit warranty is valid during the warranty period
if unit installation, commissioning and service is done
according this manual. If despite proper usage there are
functional disruptions in the ventilation unit, register
these using the response form at the address www.
casahelp.fi.
There are also instructions, service videos and frequently
asked questions on the same website. You directly
access a web page with model specific instructions by
reading the QR code on the door of the ventilation unit
with a smartphone.
If a problem or a fault occurs on the ventilation sys-
tem after the warranty period, contact our network of
authorised service companies on www.swegonhomeso-
lutions.com, your real estate company's service division
! or another service company that is fully conversant with
ventilation repairs.
R2.060219
All rights to changes reserved.