3. Alarms and Troubleshooting
3.1. Alarm
Any disruptions to the function of the ventila-
tion unit are indicated by symbols on the
upper row of the base display. If there is an
active alarm in the system, the screen leaves
its standby mode and returns to full bright-
ness and does not enter standby mode again
as long as the alarm is active. The symbol for
an active alarm is
caused the alarm is shown by the "Alarm"
item on the main menu. A so-called info-
alarm
, remains on the screen when the
active fault condition ceases. The Info alarm
can be reset from "Alarm" on the main menu.
Status
Alarm
T1...T8 sensor fault
Reheater error
Preheater error
Freeze risk water-
heated air heater
Fault supply air fan
Fault extract air fan
Contact fault
External emergency
stop/fire alarm
Internal fault
Service reminder
Filter guard
3.2 Troubleshooting
A ventilation system is a unified whole composed
of several system components all of which influ-
EN
ence how the system operates. A malfunction in
ventilation performance could be caused by any
component of the ventilation system or by the
way the system has been installed. If during the
ventilation unit's warranty period (2 years) after a
check (see the check list enclosed with the instal-
lation, operation and maintenance instructions)
there are functional disruptions in the ventilation
114
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. The condition that has
Action
Contact a service company. The ventilation unit runs in a
restricted operating mode.
Check the overheating protection. Contact a service company.
Check the overheating protection. Contact a service company.
Ensure that the circulation pump in the waterborne heating
system is running and that the water supply to the ventilation
unit's heating coil is hot enough.
Contact a service company.
Contact a service company.
Restart the ventilation unit. Contact the service company if the
error persists.
The alarm clears automatically when the external emergency
stop or the fire alarm ceases. No info alarm remains afterwards.
Restart the ventilation unit. Contact the service company if the er-
ror persists. The ventilation unit runs in a restricted operating mode.
Service the ventilation unit and acknowledge the service reminder.
Replace the filter and reset the filter guard.
unit, you can 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.
If a problem or a fault occurs on the ventilation
system after the warranty period (2 years), con-
tact our network of authorised service companies
on www.swegonhomesolutions.com, your real
estate company's service department or another
service company that is fully conversant with
ventilation repairs.
Swegon reserves the right to alter specifications.