Dantherm HCV 3 Installation And Service Manual page 66

Fault finding instruction,
Malfunctions
Inconvenience
64
continued
Localise the problem in the left column and follow the instructions in the right column
Malfunction
The unit does not operate, and
there is no light in the control
panel.
There is water around/beneath
the unit.
Localise the problem in the left column and follow the instructions in the right column
Inconvenience
Abnormal noise The unit is running on Fan
from the unit. Step 4 (only suited for shorter
duration of use).
The filter is blocked.
The installation has not been
done correctly. The air flow
channels might be partly
blocked.
The unit has not been bal-
anced correctly.
Cause
The power supply is not
connected.
A water trap has not been
mounted on the drain as
described.
The drain studs on the
unit or on the drain hose
is frozen.
The unit is mounted
slantwise due to which
water from the drain
comes up into the unit.
The drain is clogged in
the hose or in the drip tray
inside the unit.
The styrene front panel
and/or the front plastic
panel of the drip tray has
not been mounted cor-
rectly.
Cause
Turn the unit back to Fan Step
1, 2, 3 or activate Automatic
Demand Mode.
Check and if necessary
replace the filter.
Make sure that the ducts are
led correctly and that the air
flows are not blocked.
Balance the air flow rate as
shown in the section in the sec-
tion "How to balance the unit"
on page 49.
Action
Make sure that the
power supply cable is
mounted correctly.
Check and mount a
water trap as de-
scribed.
Secure the drain studs
on the unit and all the
way to the drain
against freezing, if
necessary use a heater
cable (accessory).
Straighten the unit so
that it is placed/hanged
vertically/horizontally.
Check that the drain is
not clogged and if nec-
essary clean it with wa-
ter and detergent.
Check that the front
plastic panel of the drip
tray and the styrene
front panel are
mounted correctly and
firmly.
Action
Continued overleaf