Philips AC4052 用户手册

Question

Answer

Why don’t the

fans work, even though 

the appliance is plugged 

in and switched on?

The appliance may be malfunctioning. Switch off the appliance and 

unplug it. Take the appliance to your Philips dealer or an authorised 

Philips service centre.

Why does the 

appliance produce an 

unusual noise during 

operation?

The pre-filter may be clogged. Clean the pre-filter (see chapter

‘Cleaning and maintenance’).

Perhaps you forgot to remove the plastic wrapper of a new filter.

Remove the plastic wrapper before you switch on the appliance again.
The air inlet or outlet may be blocked by external objects. Remove the

object that blocks the air inlet or outlet.
The appliance may be malfunctioning. Switch off the appliance and 

unplug it. Take the appliance to your Philips dealer or an authorised 

Philips service centre.

Why does the 

appliance produce a 

burning smell during 

operation?

The appliance may be malfunctioning. Switch off the appliance and 

unplug it. Take the appliance to your Philips dealer or an authorised 

Philips service centre.

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