Philips AC4550/50 - Инструкция по эксплуатации - Страница 18

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EN

8 Troubleshooting

This chapter summarizes the most common problems you could encounter 
with the appliance. If you are unable to solve the problem with the information 
below, contact the Consumer Care Center in your country.

Problem

Possible solution

The appliance 
does not work 
even though it is 
plugged in.

• 

Check if the top cover is properly installed.

• 

The filter replacement light has been on continuously 
but you have not replaced the corresponding filter. 
As a result, the appliance is now locked. In this case, 
replace the filter and reset the filter lifetime counter.

The airflow that 
comes out of 
the air outlet 
is significantly 
weaker than 
before.

• 

The pre-filter is dirty. Clean the pre-filter (see the 
chapter "Cleaning").

The air quality 
does not improve, 
even though the 
appliance has 
been operating 
for a long time.

• 

Check if the packing material is removed from the 
filters.

• 

One of the filters has not been placed in the appliance. 
Make sure that all filters are properly installed in the 
following order, starting with the innermost filter:  
1) NanoProtect  filter Series 3 (FY3433);  
2) NanoProtect  filter Active Carbon (FY3432); 
3) pre-filter.

• 

The air quality sensor is wet. The humidity level in your 
room is high and causes condensation. Make sure that 
the air quality sensor is clean and dry (see the chapter 
"Cleaning").

The color of the 
air quality light 
always stays the 
same.

• 

The air quality sensor is dirty. Clean the air quality 
sensor (see the chapter "Cleaning").