Troubleshooting on additional components
Instruction Manual VisGuard 2 Extractive
14265E/1
33
9.4
Malfunctions on the suction fan
DANGER!
Danger due to electric shock that may result in serious bodily injury or death.
There is a risk of fatal injury when coming into contact with electrical connections! Theref o-
re, mains voltages may only be measured by persons with the relevant qualifications.
The suction fan is the component exposed to the most stress in the sampling system. If the
suction fan is not running, this can be caused by the following:
Motor circuit breaker has triggered.
If a motor circuit breaker is installed, check whether it has triggered. If it has triggered, reset
the circuit breaker. If the circuit breaker continues to trigger, the suction fan is overloaded. In
this case, the suction fan should be replaced (Section 10.3).
Error during actuation by the control device.
Check whether actuation by the control device is made correctly by measuring the suction
fan voltage while the system is running. If this is not the case, examine the controller for the
suction cause.
Mechanical blocking of the suction fan.
The suction fan must be replaced (Section 10.3).
Defect in the motor winding.
This cause can be assumed when all other previous causes have been ruled out. The suction
fan must be replaced (Section 10.3).
