Troubleshooting - Philips HU4801 User Manual

8 Troubleshooting

This chapter summarizes the most common problems you could encounter with the humidifier. If you
are unable to solve the problem with the information below, contact the Consumer Care Center in
your country.
Problem
The humidifier does not
work.
There is no air
humidification.
The water tank leaks.
There are some
white deposits on the
humidification filter.
The filter turns
yellowish after some
time.
There is unpleasant
smell coming out from
the humidifier.
No air comes out of the
air outlet.
I do not see visible
mist coming out of the
humidifier. Is it working?
Possible solution
Make sure that there is power supply to the humidifier.
Make sure that the water tank is filled with water and the upper unit is
placed properly onto the water tank.
Make sure that the water tank is filled with water and the upper unit is
placed properly onto the water tank.
Your room might have too much ventilation. Please close doors and windows.
Your room size is too big. The recommended room size is 25m² for both
HU4801.
Make sure that the humidifier is not overfilled with water.
Make sure that the humidifier is well assembled/connected every time after
you clean it or after you remove the upper unit and/or water tank for refilling.
Make sure that the water tank is properly placed. If the problem persists,
contact the Consumer Care Center in your country.
The white deposits are called scale and they consist of minerals from the
water. Scale on the humidification filter affects the humidifying performance.
Therefore you have to descale the humidification filter regularly (See the
chapter ''Clean the humidification filter').
The yellow color is caused by scale and some dirt which is present in
the air. When the air passes through the humidification filter, the dirt and
scale will stick to the filter and pure water is evaporated in to the air. Scale
and dirt on the humidification filter affects the humidifying performance.
Therefore you have to descale the humidification filter regularly (See the
chapter ''Clean the humidification filter').
Make sure that the water tank is filled with water. Clean the humidification
filter (see the chapter 'Clean the humidification filter').
Plug the humidifier into the power supply and switch on.
When mist is very fine, it is invisible. This humidifier has a specially designed
humidification filter that produces very fine mist. Therefore, you cannot see
the mist.
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