Rev 00.00
Page 24 of 32
reproduction of this manual, even partial, is forbidden.
MACHINE MAINTENANCE
Par
Description
4
Malfunctions
FAULT TYPE
CAUSE
ACTION
STARTING PROBLEMS
Low voltage supply
Check the motor dataplate and the mains
power supply
No power supply
Check the connection of the plug and/or
socket
FAILURE TO START
No power supply
Check the connection of the plug and/or
socket
Motor burn out
Replace extractor fan
FILTER CLOGGED INDICATOR
LIGHT ON
Filters are clogged beyond the limit set
Clean filters with compressed air
Replace filters
Replace pressure switch device
THE POWER ABSORBED IS
GREATER THAN THE ONE
INDICATED ON THE
IDENTIFICATION LABEL
AND/OR MOTOR PLATE
The motor rotates below its normal rotation
speed
Check power supply. Check for faults in
the motor windings and if necessary
replace it.
EXCESSIVE VIBRATIONS
Unbalanced rotating parts
Check balancing of rotating parts
Loose or unsuitable antivibration devices
Check the tightness of the antivibration and
their good condition
REDUCED SUCTION
Clogged filters
Check the condition of the filters and the
signal on the electrical panel; if necessary
replace with a new set of filters.
Air leaks
Check the casing for strange openings or
air passages. If possible try to seal
everything with silicone.
Unbalanced impeller
Check the condition of the impeller and
check for damaged parts or dirt on the
blades. Remove the fan unit and
thoroughly clean the impeller.
MW 1900 WELDING FUME EXTRACTOR
Masterweld | 2018 all rights reserved
