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TROUBLESHOOTING GUIDE
Please read the Warranty certificate before attempting any service on your power unit. The motor in
your power unit DOES NOT require oiling. The bearings have been lubricated and sealed at the fac-
tory. Tampering in any way with the motor blower will invalidate your warranty. Your central vacuum
system has been engineered to provide many years of carefree service. Should your system for
some reason fail to function properly, the following chart and instructions should help you to restore
efficient service promptly. Check the chart for symptoms and then read across to determine the prob-
able cause. The probable causes are numbered for your convenience and after you have found your
symptom refer to the directions for checking that item.
SYMPTOM
NO
AIRFLOW
LOW
AIRFLOW
POWER
UNIT
DOES
NOT RUN
POWER
UNIT
CONTINUES
TO RUN
CYCLES
OFF
AND ON
Check each X for
PROBABLE CAUSE
1. Power Cord
2. Push-to-reset Circuit Breaker on Unit
3. Circuit Breaker in House Panel
4. Internal Thermal Switch in Unit (some models)
5. Electrical Wall Outlet Plug
6. Switch in the Wall Inlet Stuck Off
7. Switch in Wall Inlet Stuck On
8. Remote Control Wire Broken
9. Remote Control Wire - Shorted
10. Flexible Hose Plugged
11. Tubing in Walls Clogged
12. Dirt Canister Overfilled
13. Filter Bag - Clogged (some models)
14. Dirt Canister Lid - Off
15. Dirt Canister Gasket Loose
16. Outside Exhaust Blocked
17. Dirt Canister Not Latched
18. Another Wall Inlet Door Open
19. Blower Protection Screen Clogged
20. Relay Stuck - On
21. Relay Stuck - Off
22. Transformer Burned Out
23. Loose Wire in Power Unit
24. A Hose Plugged into another Inlet
25. P.C. Board Relay Stuck ON
26. P.C. Board Transformer burned out
27. LED Light
X X X
X X
X X
X
X X X
X
X
X X X
X X
X X
X X
X
X
X
X
X X
X
X
X X
X
X X
X X
X X X
X
X
X
X
1. Power Cord - Make sure that the power cord is plugged into an operating receptacle of the proper
voltage and current for your unit.
2. Push-to-Reset Circuit Breaker - If your unit has experienced an over current or extremely high
temperature, the button will pop out. To reset, simply push the button in until it protrudes about
1/8 inch and stays in. If the breaker pops out again when the unit is used - call your service technician.
6