MSG AQUAPRO-WC Serie Manuel De L'utilisateur page 59

Trouble shooting guide
FAULT
OIL BURNER
The water temperature is not
suffi cient.
Several times, the burner runs for a few
minutes, then stops.
The burner continues to heat when the
gun trigger is released.
The burner extinguishes or refuses to
light.
CAUSE
Check the weed killing temperature &
pressure.
The thermostat is set too low.
Lime has built up inside the heating
coil.
The oil fi lter is dirty.
The coupling between the motor and
the oil pump is damaged.
The pressure switch is defective.
The electrovalve is defective.
The oil tank is empty.
The oil fi lter is blocked.
The oil nozzle is blocked.
The oil pump is defective.
The electrovalve is defective.
The coupling between the motor and
the oil pump is broken.
The pressure switch is defective.
The fuse has blown.
The ignition transformer is defective.
The electrodes are defective or have
moved.
The burner motor is defective.
59/98
REMEDY
Adjust the weed killing pressure.
Adjust DES display.
Scale the coil (see maintenance
section).
Replace.
Replace.
Repair or replace.
Replace.
Fill the tank.
Replace.
Replace.
Repair or replace.
Replace.
Replace.
Repair or replace.
Replace.
Replace.
Adjust the electrodes according to
manufacturer recommendations or
replace.
Repair or replace.