Fault Finding Guide - Dantherm CDF 45-Serie Wartungsanleitung

Fault finding guide

Important!
Fault finding
More help
20
If the dehumidifier is not functioning correctly, shut it down immediately!
Use this table to localize and solve a possible problem or fault:
Fault
-
• The
dehumidifier
does not work
• No light in the
LEDs on the
display
The compressor
• The compressor
has stopped
does not work
automatically
• The triangle is
caused by a too
constantly red
high temperature
on the condenser
The room
• The
temperature is
dehumidifier
lower than 3 °C and
does not work
the dehumidifier
• The thermome-
has been switched
ter LED on the
off automatically
display is lit in
red
-
• The
dehumidifier
does not work
• The lighting on
the display is
green
If you cannot find the reason for the fault, switch off the unit immediately in order to
prevent further damage.
Contact a service technician or a Dantherm Air Handling representative.
Possible cause
• Check the external fuses
• Check the power supply to the unit
If the unit does not start again after 45
minutes, check the following:
• Check that the fan(s) is running
• Check if the filter (CDF-T: in the duct
• Check if the evaporator and the
• Check if the room temperature is
• Check that the front cover panel
Wait till the temperature has increased
to more than 3 °C
Check the built-in or the external
hygrostat, if any, by setting it to a low
relative humidity, e.g. 10 – 20 %RH.
If the unit still does not start, check the
built-in or external hygrostat for defects
Solution
kit) is dirty
condenser coil is dirty
higher than 30 °C. If the room
temperature is higher than 30 °C, the
unit must be stopped
(CDF)/duct openings (CDF-T) are
not covered