19
070718
•
Ver
si
on
1
.2
•
11.
07.
201
9
EN
Fault finding guide,
continued
Problems,
continued,
continued
Locate the problem in the left column, and follow instructions on the right:
Problem
Cause
Tip
The unit always runs at the
same speed.
The unit is set to manual
mode at a specific speed.
Set the unit to automatic
demand control, after
which the unit will adjust
the volume of air as
needed.
The display goes out after a
brief period of time, after
which only the green LED is
lit.
The display goes into hi-
bernation mode after 2
minutes in order to save
energy.
The unit is working
properly.
Содержание HCV 4
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