I�GeneralFullSizeCanisterIssues
07�03�07
2
A. Full Bag Indicator
1. General information
Apressuresensor,locatedonthemainPCboard,governsthe“fullbagindicator”feature�Thissensorisconnectedtothebagcavityvia
anairtube�Whenthepressureexceedstheactuationlimitforaminimumtimeperiodof20sor–10),theredlightblinksonthe
handle�Ifthisconditiongoesuncheckedthecanistermayoverheatandshutdown�
NOTE:HoseconnectstowhitepressuresensoronPCboard�
2. The red light on the handle is blinking.
1. Bag is sufficiently full to restrict airflow.
2. Hose, wand, or attachment may be clogged or attachment size is restricting airflow.
3�Sensororconnectingtubemaybeclogged�
4. For filtering purposes HEPA bags have very small airflow pores. Because these pores are so small, they are susceptible to clogging
when vacuuming very fine debris such as drywall dust or talcum powder. In these instances, the bag may not appear to be full.
5�Ifnoneoftheaboveconditionsexist,andthefullbagindicatorlightonthehandleisblinking,thesensormaybesetimproperly�
6. The hose or PC board may be bad. Remove the HEPA filter and see if the FBI light goes out. If the FBI light stays “ON” the hose is
shouldbereplaced,otherwisethePCboardneedstobereplaced�
3. The full bag indicator fails to activate when the bag is full
1. The bag may be filled with fluff. Light, low-density materials can fill the bag but still allow enough airflow through so that the pressure
neverreachesthesensor’sactuationlimit�
2�Theremaybeaproblemwiththewiringinthehandle/hoseassembly�Tryaknowngoodhoseandre-test�
3�TheremaybeaproblemwiththehandlePCboard�
4�Theairtubemaybedis-connectedordamaged�
5�Ifnoneoftheaboveconditionsexistandthefullbagindicatoronthehandledoesnotblinkwhenthebagisfull,thesensormaybeset
improperly�
6. The hose or PC board may be bad. Remove the HEPA filter and see if the FBI light goes out. If the FBI light stays “ON” the hose is
shouldbereplaced,otherwisethePCboardneedstobereplaced�
I. General Full Size Canister Issues
