4. The boiler doesn’t ignite Pag.
4a Wrong blower’s motor rotation sense (only for Three-phase models) 27
4b Missing fuel 27
4c Suction pipe and/or, fuel filers clogged 27
4d Fuel pump out of order 28
4e Fuel solenoid not electrically supplied or defective or damaged 30
4f Fuel nozzle clogged or spraying irregularly 30
4g High voltage ignition transformer not functioning 31
4h Sparking plugs are dirt or worn 31
5. Bad fuel combustion Pag.
5a Fuel tank almost empty 32
5b Suction pipe and/or, fuel filers clogged 32
5c Fuel pump pressure setting not properly adjusted 32
5d Fuel with impurities, dirt or water 32
5e Combustion adjustment incorrect 32
5f Burner’s coil clogged by dirt or soot 34
5g Fuel nozzle partially clogged 35
6. Poor hot water temperature at the machine outlet Pag.
6a Thermostat adjusted at minimum or not working 36
6b Fuel filters clogged or dirty 36
6c Fuel pump pressure setting not properly adjusted 36
6d Fuel with impurities, dirt or water 36
6e Fuel nozzle partially clogged 36
6f Burner’s coil pipe internally clogged by limestone 36
7. Poor detergent delivery Pag.
7a Detergent’s tap closed or clogged 37
7b Empty detergent tank 37
7c The check valve of the detergent circuit is stuck or clogged 37
7d Burner’s coil or high pressure outlet pipes clogged 37
8. Oil and water emulsion phenomena to the high pressure pump oil Pag.
8a Extremely high environment humidity percentage 38
8b High pressure pump gaskets worn 38
8c High pressure pump pistons damaged 39
