EN
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Malfunction Probable cause Remedy
When connected to the power grid, the fan does not rotate, does not respond
to controls.
The mains supply is not connected.
It is necessary to consult a specialist.
Internal connection fault.
Low air flow. The ventilation system is clogged. Clean the ventilation system.
Increased noise or vibration.
The impeller is blocked. Clean the impeller.
The fan is not fixed or incorrectly mounted. Correct the installation error.
The ventilation system is clogged. Clean the ventilation system.
Possible problems and solutions
ATTENTION!
The fan and the service controlling equipment has to be isolated from power supply during the installation time and service.
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