D. SERVICING AND MAINTENANCE.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT
MUST BE ISOLATED FROM THE POWER SUPPLY DURING
MAINTENANCE.
1. At intervals appropriate to the installation, the fan should be inspected and
cleaned to ensure there is no build-up of dirt or other deposits.
2. Wipe the inlets and front face with a damp cloth until clean.
The fan has sealed for life bearings, which do not require lubrication.
E. TROUBLESHOOTING
1. The fan continuously runs in boost:
a. Cause:
i. The room is damp or recently redecorated.
ii. The humidity set point is set too low.
b. Solution:
i. If the room is damp or has recently been decorated, it could
take up to 2 weeks for the humidity levels to stabilise. Please
leave the fan to dry out the room and after this period the fan
should run normally.
ii. The humidity set point could be set too low. Adjust the
humidity set point to a higher setting. (Section C)
2. The fan does not boost when the humidity is high:
a. Cause:
i. The humidity set point is set too high.
b. Solution:
i. Adjust the humidity set point to a lower setting. (Section C)
3. Water is dripping out of the fan when installed in a ceiling:
a. Cause:
i. This is caused by condensation forming on the inside of the
ducting and dripping out of the fan inlet.
b. Solution:
i. This is normal and the fan is designed to handle condensation
build up. However a condensation trap connected immediately
after the fan will help to prevent water dripping into the room.