Troubleshooting - Micron Electrafan 240 Instruction Manual

TROUBLESHOOTING

FAULT CHECKING CHART
Problem
Motor fails to start
1. Switch
2. Blown fuse
3. Stiff or seized motor
4. Loose connection in plug or
extension lead
5. Faulty switch, internal wiring or
motor
Motor runs slowly
1. Friction in atomiser assembly or
motor
2. Poor electrical connections
3. Worn or defective switch contacts
4. Defective motor armature
Fails to spray and chemical
dribbling from air bleed hole in
feed line
1. Blocked feed nozze.
Intermittent spraying
1. Blocked air bleed in feed line
Intermittent spraying and excessive
contamination of fan and fan guard
with repeated blocking of feed
nozzle
1. Blocked atomiser assembly
N.B. always disconnect the sprayer from the battery
Check switch is in ON position.
Remove the plug from the mains supply and check fuses.
Disconnect from the mains supply. The atomiser assembly should
be free to turn in an anti-clockwise direction. Some friction from
motor brushes is normal but if it is difficult to turn by hand contact
your supplier or Service Department at Micron.
Remove the plug from the mains supply and check that all
connections are clean and secure.
Contact your supplier or Service Department at Micron.
Disconnect from the mains supply. The atomiser assembly should
be free to turn in an anti-clockwise direction. Some friction from
motor brushes is normal but if it is difficult to turn by hand contact
your supplier or Service Department at Micron.
Check systematically all external wiring and connections.
Contact your supplier or Service Department at Micron.
This is often associated with over-heating.
Contact your supplier or Service Department at Micron.
Remove spray bottle.
Remove and clean feed nozle (see 'TO CLEAN FEED
Remove the spray bottle and clean threads on the bottle and in the
neck of the feed line. When fitting the bottle into the bottle holder
tighten fully and then unscrew by 1/4 of a turn. If this is not done
the airbleed may be blocked causing liquid feed to stop. Check the
air bleed hole is clear.
Remove the spray bottle. Remove and clean atomiser assembly
and feed nozzle (see 'TO CLEAN ATOMISER ASSEMBLY' and
'TO CLEAN FEED NOZZLE').
13
Procedure