Malfunctions - Zehnder CO2 Sensor Manuel De L'utilisateur

6

Malfunctions

Check your ventilation system regularly for
malfunctions. These are not displayed by the
control unit.
The RF versions of the control unit are
equipped with the following communication-
oriented error messages:
Error message
The CO indicator flashes red 3x.
2
The selected mode flashes 3x.
The original mode is then
displayed continuously.
The CO indicator flashes red
2
continuously.
22 - EN
The system should remain connected to its
power supply unless the ventilation system
needs to be taken out of service due to a
serious malfunction or another compelling
reason. This prevents moisture and mould
problems in the home.
Problem
An operating action has been
performed, but communication is
not possible.
The CO level is too high, signal
2
is complete, but there is no
communication.
Solution
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.