Memmert INCO 246/246 med CO2 Incubators (Generation 2003) - Manual (Page 40)

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Warning messages and malfunctions
6. Warning messages and malfunctions
6.1 Warning messages
An intermittent tone is also set off by the warning messages. This can be temporarily
switched off by pressing the SET key.
DOOR OPEN if the door of
appliance is opened for
longer than 3 minutes.
Remedy: Close the door
Error in the temperature control system (see also Chapter “ Temperature monitoring ”
on page 47 ):
Tb active - temperature
limiter triggered if the
temperature limiter
responds
Remedy: Switch off the appliance
and leave to cool down. If the
error occurs again after switch-
ing the
appliance back on: Switch off
the appliance and Contact the
customer service
hi-alarm - overtempera-
ture alarm limit max ex-
ceeded if overtemperature
protection responds
Remedy: Check the setting of
the MAX temperature monitor-
ing (see Chapter “ Temperature
monitoring ” on page 47 .
lo-alarm - undertem-
perature alarm limit min
crossed if undertempera-
ture
protection responds
Remedy: Check the setting of
the MIN temperature monitor-
ing (see Chapter “ Temperature
monitoring ” on page 47 .
asf alarm - temperature
outside tolerance band if
automatic monitoring
function responds
Remedy: Check the setting of the
ASF temperature monitoring (see
Chapter “ Automatic temperature
monitor (ASF) ” on page 50 .
Error in humidity system (only for appliances with humidity module)
if the water supply is
defective
Remedy: Check that the water
supply hose is properly con-
nected. Fill the water supply tank
with distilled water if it is empty.