enervent LTR-3 eAir - ALARMS AND SHUTDOWNS; COOLING ERROR; EXTERNAL EMERGENCY SHUTDOWN; EXTERNAL FIRE RISK

103Operating and maintenance instructions for the ventilation unit
Alarm Reason Instruction Solution
Cooling error The external cooling unit
has shut down
Check that the safety switch of the external
unit is on.
Start the external unit. If the issue persists,
contact maintenance.
Contact the maintenance.
External
emergency
shutdown
Ventilation stopped with
the emergency shutdown
button.
If the house has an external shutdown switch,
check if it has been pressed.
Find the root cause before resetting.
Contact the maintenance.
External re
risk
Ventilation shut down
with an external re risk
controller.
If your house has an external re risk
controller, check if it has been activated.
Find the root cause before resetting.
Contact the maintenance.
Maintenance
notice
Normal notice every 4 or 6
months (depending on the
model)
Change the lters and clean the unit from
inside. Check that the machine functions.
Contact the maintenance.
Filter alarm:
Supply (extra)
Supply lter is blocked. Open the access door when the machine is
o. Pull out the lter and check the dirtiness
of the lter.
Change the supply lter.
Contact the maintenance.
Filter alarm:
Exhaust (extra)
Exhaust air lter is blocked. Open the access door when the machine is
o. Pull out the lter and check the dirtiness
of the lter.
Change the exhaust lter.
Contact the maintenance.
Supply air
lter rotation
guard
Supply blower has stopped. Open the machine access door while the
machine is operating. The supply blower
should be rotating. In LTR model machines,
press the door switch with a screwdriver and
check, if the blower starts.
Contact the maintenance.
Exhaust air
lter rotation
guard
Exhaust blower has stopped. Open the machine access door while the
machine is operating. The supply blower
should be rotating. In LTR model machines,
press the door switch with a screwdriver and
check, if the blower starts.
Change blowers.
Contact the maintenance.
PDS 10 alarm Supply blower has stopped. Open the access door while the machine
is operating. The supply blower should be
rotating. In LTR model machines, press with a
screwdriver and check, if the blower starts.
Contact the maintenance.
Supply lter blocked. Open the access door when the machine is
o. Pull out the lter and check the dirtiness
of the lter.
Change the supply lter.
Contact the maintenance.
Outdoor louvre blocked. Check if the louvre on the outside is blocked. Clean the outdoor louvre.
Contact the maintenance.