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The air quality in the dwelling is not good / air supply and extraction in the dwelling are not working
properly
Cause
a) One or both filters are dirty or blocked.
b) The valves are dirty or blocked.
c)
The air valves are not correctly adjusted.
d) The fan is not running.
e) The ventilation unit is not responding to the RF
sensors (PIR sensor, CO
2
Cold air is being supplied to the dwelling
Cause
a) The filter in the extraction outlet is blocked.
b) The air valves are not correctly adjusted.
c)
The bypass valve is in bypass mode when it
should not be.
d) One of the temperature sensors is faulty.
38
Solution
Clean or replace dirty/blocked filters.
●
Clean the valves.
●
Put the ventilation unit in commissioning
●
mode and readjust the system settings.
See "The ventilator is not running".
●
See "The ventilation unit is not
●
sensor, RV sensor).
responding to the RF sensors".
Solution
Clean or replace the filter in the air outlet.
●
Put the ventilation unit in commissioning
●
mode and readjust the system settings.
Clean the bypass valve if it is dirty.
●
Replace the entire bypass valve if it is
●
defective.
If the supply air temperature sensor is
●
faulty, replace the wiring harness with the
temperature sensor in the motor module.
If the exhaust air temperature sensor is
●
faulty, replace the entire bypass module.
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