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5. Trouble shooting
5.1. FAQ’s
a. The fan has been switched off
unexpectedly.
• Mains voltage failure, check the
Fuse Spur or in the distribution
board cabinet/meter cupboard.
• Plug in the power cord.
• Frost protection active, wait for
120 minutes and the fan will be
switched on.
b. The unit makes a lot of noise.
I. Gurgling noise coming out the unit.
• The condensate trap below the unit
has a too low water level, fill it up
with water.
• The flexible condensate hose is not
completely in the condensate trap,
push it deeper.
II. Rattling noise coming out the unit.
• Fan motor fault, please contact your
installer or service technician.
III. Swishing sound coming out of the
grilles.
• There is too much air pressure drop
in the duct and grilles, clean both
filters in the Advance unit and the
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