YELLOW FLASHING WARNING LIGHT
This model is fi tted with a yellow fl ashing LED warning light. When this light is fl ashing the
airspeed in the hose has dropped below 20 metres per second. This would indicate that there is an
impediment to the airfl ow.
1. Remove hose. If LED stops fl ashing, the hose is blocked. Unblock the hose and try again.
2. If LED fl ashes with no hose connected, there is a restriction in the air fi ltration system. Using
the following sequence, check, replace or clean the following:
a) Disposable Microfi bre bag
b) High Effi ciency Cloth fi lter assembly
c) HEPA Cartridge fi lter (also known as the absolute or essential fi lter)
<20 m/s
1
a
b
c
2
3
2
1
1
5
2
3
4
3
