Installation, Operation and Maintenance manual
39
WSO Flex
TROUBLE SHOOTING GUIDE
Disconnect all power supply before services.
Trouble
Possible cause
Remedy
Fan does not start
Not wired correctly
Check and correct internal motor wiring for
proper connections for your voltage
(use controller manual).
Proper wire size not used for
motor
Rewire per national and local electric codes
for proper wire size.
Fan set starts, but does
not keep running or
ALARM FAN on controller
Incorrect overload protection is
installed
Check for proper motor overload protection.
Replace if needed for proper valueon the F1
block and reset by pushing the button.
Mist collector door is open or not
closed tight
Tighten door securely.
Electrical circuit fuses
Check if the supply circuit has sufficient
power to run all equipment.
Excessive noise /
vibration of the fan
If this happens it
should be rectified at
once
Deposit on the blades
Clean the blades.
Worn blades
The fan wheel has to be replaced.
Worn bearings
The bearings have to be replaced.
Oil mist emission
Filter element installed
improperly
Check that the gasket on the filter element is
firmly pressed to the top plate and that the
filter element is correctly installed.
Filter element damage, dents in
the end caps, gasket damage or
holes in pleated media
Replace the filter element.
Door not airtight
Tighten doors securely and check sealing.
Insufficient airflow
Fan wheel rotating wrong way
Check fan rotation. Refer to rotation arrow
sticker on fan housing. To access fan housing,
refer to figure 20, HEPA filter replacement.
Openings not properly sealed
Check if door is closed and tightened
securely.
Outlet is restricted
Check outlet for blockage. Remove material
or debris that is blocking the outlet.
Plugged first stage filter.
Remove and clean or replace.
Plugged second stage filter
element wrap and / or third stage
filter element.
Filter element wrap and / or filter element
needs to be replaced.
Plugged HEPA filter
HEPA filter needs to be replaced.
Insufficient hopper
discharge
Plugged collection bottle
Remove and clean collection bottle and bottle
faucet.
