Operation Failures / Alarms - Helios KWL EC 500 Eco R Instructions De Montage

OPERATION FAILURES / ALARMS

SYMTOM
1
Outdoor air cool when
entering the house.
2
The unit is deaf, the fans do not
rotate, and none of the indicator
lamps of the control panel is lit.
3
LED-Filter reminder at the 4-level
operation switch flashes.
Service und Information
D HELIOS Ventilatoren GmbH & Co · Lupfenstraße 8 · 78056 VS-Schwenningen
CH HELIOS Ventilatoren AG · Steinackerstraße 36 · 8902 Urdorf/Zürich
A HELIOS Ventilatoren · Postfach 854 · Siemensstraße 15 · 6023 Innsbruck
CAUSE
• Air cools down in the attic ducts.
• The heat recovery cell has frozen, and extract air
cannot heat outdoor air.
• The extract air filter or the cell is clogged.
• The door switch may be broken or has not
closed properly.
• The socket is dead; the fuse may have
burned out, for instance.
• Filter clogged
• Fan broken
• KWL EC 500 unit is broken
• Air flow volume is smaller than adjusted value
METHODE/DO THIS
• Check the insulation of the attic ducts.
• Check the cleanliness of the filters and the heat recovery cell.
• Check the door switch and the fuses. The unit has a glass tube fuse,
T800mA.
• If needed, contact a service representative (in order to check the glass
tube fuse, for instance).
• Cleaning or replace the filters.
• Maintenance of the unit
• Adjust the middle speed step of the 4-level operation switch,
if the LED expires, the unit is operable.
F HELIOS Ventilateurs · Z.I. La Fosse à la Barbière · 2, rue Louis Saillant · 93605 Aulnay sous Bois Cedex
GB HELIOS Ventilation Systems Ltd. · 5 Crown Gate · Wyncolls Road · Severalls Industrial Park ·
Colchester · Essex · CO4 9HZ