7.3 Error table
Check the following if the device is still not functioning correctly but
no malfunction is present:
Fault description Cause Remedy Personnel
No function; the humidifier
does not start up.
The device is not
switched on.
Switch on the device (
Ä
on page 32).
Operator
The device is not con-
nected, or is not con-
nected correctly.
Ensure that the power plug of the
humidifier is connected to the power
supply.
Operator
The [Water level indicator]
illuminates red.
The water level is too
low.
Top off the water (
Ä
Chapter
5.3 “Filling the water tank”
on page 32).
Operator
The copper electrodes
of the water level indi-
cator are dirty.
Clean the copper electrodes
(
Ä
Chapter 6.3.4 “Decalcifying the
device” on page 45).
Operator
The humidifier is switched
on but the fan is not run-
ning.
The air humidity is
higher than the set
target value for
humidity.
If required, change the target value
(
Ä
Chapter 5.4 “Setting the desired air
humidity” on page 34).
Operator
The fan is defective.
Replace the fan (
Ä
Chapter
7.4.2 “Replacing the fan”
on page 56).
Operator
The fan plug is defec-
tive.
Check the cable connection and cable.
Replace them if necessary.
Licensed
electrician
The device runs, but there
is no water in the water dis-
tribution.
The pump hoses are
dirty or are not prop-
erly connected.
Clean the pump hoses and connect
them properly (
Ä
Chapter
6.3.4 “Decalcifying the device”
on page 45).
Operator
The lime transforming
cartridge (optional
accessory) is blocked.
Clean the lime transforming cartridge
(
Ä
Chapter 8.6.1 “Cleaning the UV
degermination system and lime trans-
forming cartridge” on page 67).
Operator
The pump is defective.
Replace the pump (
Ä
Chapter
7.4.1 “Replacing the pump”
on page 53).
Operator
The water channel is over-
flowing.
The drainage holes
are blocked.
Clean the water distribution and the
drainage holes (
Ä
Chapter
6.3.1 “Monthly cleaning” on page 40).
Operator
Water is leaking from the
device.
The water tank is
leaking.
Check the water tank for damage. Operator
Detecting and remedying malfunctions
Evaporation Humidifier B500 Professional 51
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