No water ?ow can be detected through the controller. De-aerationcycle is started. When water ?ow is detected during this cycle, the de-aeration cycle is terminated and the burner is released. The controller checks the water pressure during static and dynamic situation.
Check the installation for the presence of air; If there is a secondary pump installed and it is not hydraulicly separated, it could cause pressure differences.
-Check the use of balancing valves
check if the pump is functioning and/or that the water pressure sensor is working properly; Polluted pump; Polluted water pressure sensor; Polluted water ?lter; Wiring of pump.
