
Manual english
EE371 / EE372
page 29
6.2 Filter replacement
A soiled
fi
lter should not be cleaned but replaced with a new one. The order number for new
fi
lters is HA010103.
When
replacing
fi
lters, please note the following:
- Unscrew the
fi
lter cap very carefully to avoid damaging the
sensing
element.
- Handling the
fi
lter might clog the pores.
Use gloves to screw on the new
fi
lter.
6.3 Self-diagnostic and error messages
Self-diagnostic via LED on the circuit board:
Power LED (green):
-
fl
ashing => Supply voltage applied / Microprocessor is active
LED D1 (blue):
- constantly lit => sensor element damaged
-
fl
ashing
=> sensor element bedewed (condensation)
Self-diagnostic via display (option):
- Error 1 => Humidity sensor element damaged
- Error 2 => Humidity sensor element bedewed (condensation)
- Error 3 => Temperature sensor element damaged
- Error 4 => Short circuit of temperature sensor
LED D1 blue
Power LED green
Содержание EE371
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