Susteco BIGHANNA T120, Operation Manual, Page: 90 / 139

(F.) MEDIUM MOISTURE - HIGH TEMPERATURE (MORE THAN 65ºC)
If the temperature is higher than 65ºC there is usually a problem with air supply to the compost
material. If the temperatures are higher than 65ºC there can be a smell of ammonia.
6.7.1 BLOCKAGE IN VENTILATION SYSTEM – SMELL OF AMMONIA
The first symptom of a blockage in the ventilation system is very high temperatures.
 Check that the airflow is functioning properly, outlet cover/bag is in position and that the fan is
working.
 Remove and clean the ventilation filter and check the airflow.

 Check that the airflow is functioning well through the biofilter (if
installed).

Note! Without the fan functioning properly and ventilation being kept clean the biological process
will not work! Clean ventilation regularly!
6.7.2 MATERIAL IS NOT AERATED ENOUGH – SMELL OF AMMONIA
If there is no blockage in the ventilation system change the parameters so that the compost material is
aerated more.
 Lower wait time.
 Increase number of rotations.

Increase fan speed.
Emtpy the biofilter
using the ball
valve when
necessary!