Check For Unusual Noises; Inspecting And Cleaning The Fan - Heatrae Sadia Advance Plus Installation Manual

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Note

It is not possible to remove the heat exchanger from the

ventilation unit. Cleaning the heat exchanger is not necessary

under normal conditions if the correct filters are used and

replaced on schedule.

6.2. Check for unusual noises

If the ventilation unit produces unusual noises or vibrations, this

may indicate that the motor module or bypass valve is faulty.

Consult Inspecting and cleaning the fan on page 30 and/or

Inspecting and cleaning the bypass valve to determine the cause

and resolve the problem.

Caution!

If the unit is ceiling mounted, be careful to avoid being hit by

swinging wire brackets when removing the ventilation unit.

Follow the steps below when inspecting and cleaning the fan:

a) Disconnect power to the ventilation unit.

b) Unlock the duct adapters using a screwdriver.

c) Tilt the ventilation unit away from the wall, ceiling or floor. Then

carefully remove the unit from the wire brackets and place it on

the floor.

d) Unscrew the screws attaching the motor module to the housing

and remove the screws.

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