Fault Finding; Electrical; Mechanical; Disposal - Woods EC BOX FAN Safety, Installation, Operation And Maintenance Instructions

7. FAULT-FINDING
Fault-finding must be carried out on the product by appropriately qualified personnel using the correct tools and
equipment. If in doubt please seek advice from Woods Air Movement.

7.1 Electrical

7.1.1 Isolate the box fan and controls from the electrical supply, check that the electrical connections to the
product are secure and wired in accordance with the connection diagram,
7.1.2 Check that the voltage applied to the product is as specified on the box fan nameplate.
7.1.3 Connect an ammeter (clamp meter) in line with each phase (one phase in the case of single phase motors)
of the box fan in turn and check that the current consumption is within the full load current specified on
the product nameplate.
7.1.4 Ensure that there is no smell of burning in or around the vicinity of the motor.
7.1.5 Check the integral fuses within the iFan controller. Refer to iFan manual.
7.1.6 Three phase units also have additional MCB protection to each motor and a separate MCB that provides a
single phase supply to the controls circuit. These are found in a separate enclosure inside the unit.
Check that these are in a healthy state before undertaking more in depth fault finding.

7.2 Mechanical

WARNING!
Before any of the following checks are made isolate the fan and controls from the electrical
supply.
7.2.1 Check that there is no obstruction to the fan impeller, that the blades are clean, and no loose items or
debris is present in the vicinity of the impeller and inlet/discharge.
7.2.2 Rotate the fan motor shaft by hand. Investigate any sound of internal chaffing, rubbing or resistance.
Any resistance to smooth rotation may indicate that the bearings require replacement.
7.2.3 Ensure that all fixings are secure.

8. DISPOSAL

When the box fan has completed its working life the metal components should be segregated and recycled. The
remaining items of material should be safely disposed of in accordance with local health and safety regulations.
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