77
PROBLEM
PROBABLE CAUSE
WHAT TO DO
The unit is switched off but
the fans continue rotating
slowly.
An extra connected controller is
providing power to the fans, so
that these start up immediately
when the door opens.
This is not an error.
The unit is switched on but
is not discharging any air.
The fans may be switched off if
there is only a small difference
in temperature between indoors
and outdoors.
This is not an error.
For units with
b-touch
:
If this is considered a problem,
the value of function 42. Fan
OFF temperature can be set
to zero.
The unit is not discharging
much air.
(There is a draft)
The inlet and/or discharge
section is blocked.
Remove obstacles to the inlet
and discharge section.
The unit is set at too low a
strength.
Switch the unit to a higher
strength.
Only for models with a filter: The
filter is dirty.
Clean or replace the filter.
Only for models with heating:
The heat exchanger has become
dirty.
Clean the heat exchanger.
The unit is not heating or
not heating sufficiently.
The unit is set at too low a
strength.
Switch the unit to a higher
strength.
Only for water-heated models:
The central heating system is not
working properly.
Check the central heating
system.
Check the connections.
Check the operation.
Check the capacity.
For units which have automatic regulation and b-touch
control panel:
The control panel display is
black.
The control unit has no power
supply.
Check the power supply:
plug in the power socket,
isolation switch,
The display is on, but does
not react to touch.
If the # symbol is shown on the
display:
The display is locked.
Touch the screen for 5
seconds to unlock it.
The display flickers
The power supply is too low or
not constant
Reduce the brightness of the
display to a level at which
flickering no longer occurs,
via
menu > Preferences >
Display brightness
.
The unit blows out cold air
(without error message).
The discharge temperature
is dependent on the outdoor
and indoor temperature
This is not an error.
If this is considered a problem,
the value of function 6.
Minimum air temperature can
be increased.
Summary of Contents for SchwankAir 3500 Series
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