Malfunctions - Zehnder 55 Manuel De L'installateur

6

Malfunctions

The RF versions of the control unit are equipped with the following communication-oriented error
messages:
Error message
After pressing the key, the CO
indicator shows the CO
The right column flashes
alternately green and red.
The CO indicator flashes red 3x.
2
The intended mode flashes 3x.
The original mode is then
displayed continuously.
The CO indicator flashes red
2
continuously.
30 - EN
Problem
The control unit is not yet coupled
2
level. to a ventilation unit. Installation
2
has not been completed.
An operating action has been
performed, but communication is
not possible.
The CO
2
is complete, but there is no
communication.
level is too high, signal
Solution
Couple the CO sensor to the
2
ventilation system. See the section
on commissioning.
1. Remove objects that
could hinder the wireless
communication.
2. Try to change the setting
again.
1. Remove objects that
could hinder the wireless
communication.
2. Ensure adequate air quality by
opening windows and doors.