Dantherm HCV 3, Installation And Service Manual

Page: 66 / 166

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