Master BLM 4800 Manual De Instrucciones Para El Uso Y Mantenimiento página 20

11) Place the fan air inlet away from walls and other obstacles
in order to assure maximum air inlet.
12) For safe operation, use the fan only when you perform gas
detection tests that are regularly repeated.
ATTENTION!!!:
Always assume that enclosed working space is contaminated
until proven otherwise. Never enter an enclosed working space
before it is controlled with appropriate gas detecting equipment
and proven safe for operation.
►► mAINTENANCE
►
Always turn off and unplug the fan to prevent accidental opera-
tion and electric shock or electrocution. Before putting any ob-
jects or fingers close to fan grates, make sure that the fan blade
has stopped rotating.
1) Visually inspect all fixed elements and components if they do
not move or are not broken. If necessary, fix or replace the parts
with original parts, approved by the manufacturer.
2) Keep the fan blades clean. Dust, dirt, paint, etc. collection on
the blade fan will result that the fan blade will rotate unbalanced
which may damage it. In order to clean the fan blade, make sure
that the plug is disconnected and the fan blade does not rotate.
Remove one grate and remove particles from the blade and in-
ternal casing with a moist cloth and delicate liquid soap. Careful-
ly dry all parts. DO NOT WASH THE FAN UNDER PRESSURE.
Replace the grate before the next operation.
PROBLEm REASON
The fan does not ope- 1. The device is not connected to mains.
rate 2. The device is not switched on.
3. The switch is damaged.
4. The power cord or electrical wires of the motor are
damaged.
The device operates 1. The device may have been strongly shaken and the
but the fan produces fan touches the casing.
loud creaky noise. 2. The device may have been strongly shaken and the
casing has been deformed.
The device operates 1. The shaft has been bent after been shaken strongly
but it vibrates too stron- and the device is not stable.
gly. 2. The fan blade is damaged.
3. Dirt has accumulated on a fan blade.
The device operates 1. The fan got stuck against the casing.
but the fan does not 2. Condenser wires are damaged, loose or the conden-
rotate. ser is faulty.
3. The casing was damaged and it presses against the
fan blade.
The device operates 1. The bearings in the motor do not operate correctly or
fast and then turns off motor short circuited.
as a result of overload. 2. Inlet grate and/or outlet grate is blocked.
3. Excessively long power cord.
►► TROUBLESHOOTING IN THE FAN
►
All maintenance procedures may be performed when the device
is unplugged from the mains.
This appliance is not intended for use by persons (including chil-
dren) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a
person responsible for their safety. Children should be super-
vised to ensure that they do not play with the appliance.
All repairs may be made by Authorised Maintenance Compa-
nies.
SOLUTION
1. Connect the device to mains. Check the electrical
switch.
2. Switch the device on.
3. Replace the switch.
4. Check continuity with a voltmeter or ammeter. . Re-
pair/replace damaged wire.
1. Take the motor out and replace damaged motor fix-
ing.
2. Replace the casing / device if necessary.
1. Take out and replace the motor. Replace the fan
blade if necessary.
2. Replace the fan blade.
3. Clean the fan blade.
1. Take the motor out and replace damaged motor fix-
ing. Replace the fan blade if necessary.
2. Repair / replace cables / condenser if necessary.
3. Replace the casing / device if necessary.
1. Replace the motor.
2. Remove the obstacle.
3. Reduce the power cord length to the recommended
maximum length.
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