© International Scientific Group 2020
Version 2020.01
5. Precautions
1. Please read the instruction manual carefully before using the unit.
2. The use of this unit must be in accordance with the specifications in this manual.
3. Do not use in flammable and explosive environments.
4. Ensure all doors and windows are closed during use.
5. The unit should be turned off and mains power disconnected for cleaning and
maintenance.
6. It is strictly forbidden to cover or block the air inlet and outlet of the unit.
7. Do not insert anything into the front of the unit through the air inlet vent. This may
cause damage to the fan and can result in electric shock.
8. Avoid direct contact with liquid whilst operating.
9. When repairing or cleaning, ensured the power is turned off to prevent ultraviolet
rays damaging the skin and eyes.
10. The ultraviolet germicidal lamp should be replaced after 5000 hours of use.
6. General troubleshooting
Failure
Action
Unit does not turn on
1. Check fuse in the plug
2. Check mains power lead is connected
UV lamp not working
1. The ballast of UV germicidal lamp may be damaged
2. The UV germicidal lamp may be burnt out
1. The fan motor may be burnt out
Fan not working
2. The motor capacitor may be burnt out
but power on
3. Check no foreign objects obstructing fan
