27 - EN
Problem/Malfunction
Indication
Check / action
The pump does not run
The EWT text is not visible on the
digital controls of the ventilation
system.
Check the ventilation unit, the measured
outside temperature and the comfort temperature setting.
The EWT text is visible on the
digital controls of the ventilation
system.
Check the pump setting, the wiring and
connection points on the connector printed circuit board of the
ventilation unit
- The pump has a defect if there is power on the clamps of the
connector printed circuit board.
High intake temperature in
summer.
The EWT text is not visible on the
digital controls of the ventilation
system.
Lower the P63 temperature on the ventilation unit.
Little or no cooling or
heating capacity.
The EWT text is visible on the
digital controls of the ventilation
system.
Check the system pressure and the pump setting.
Little or no
supply air
Filters clogged.
Replace the filter.
Battery clogged.
Clean the battery.
Too much noise
Whistling noise
- Air escaping through crack
somewhere
Seal the crack using insulating tape (not included).
Slurping noise
- Siphon is empty
- U bend is not sealed properly
Fill the siphon, reconnect the siphon.
Condensation leak
Condensation drain clogged.
Clean both condensation drains
(at the top and bottom of the ComfoFond-L Eco).
Condensation on the pipes and/or
brine and air connections.
Insulate the connections and pipes.
Frost-free set up not achieved
The ComfoFond-L Eco was not installed in accordance with the
installation requirements. Insulate the area that accommodates the
ComfoFond-L Eco or relocate the ComfoFond-L Eco to a frost-free
area.
High humidity
Lower the humidity by ventilating the area. If the humidity remains
high, then relocate the ComfoFond-L Eco to an area with a lower
humidity or insulate the areas where condensation forms.
7. Malfunctions
The ComfoFond-L Eco does not have a digital
control system that indicates malfunction codes.
The ventilation unit has a digital control system that
indicates malfunction codes. The ventilation unit
manual states what the malfunction codes mean and
how to rectify these malfunctions.
Not all malfunctions are displayed on the digital
control system of the ventilation unit, even though
there may be malfunctions (or problems). Below is a
list of the malfunctions (or problems) that may occur
without a malfunction code being displayed on the
digital control system.
Summary of Contents for ComfoFond-L Eco 350 L
Page 95: ...95 ...
