159 DescalingScale builds up inside the machine during use. It isessential to descale the SENSEO® coffee machinewhen the CALC light goes on.When to descale• Descale the SENSEO ® coffee machine asdescribed below when the CALC buttonlights up (after you have brewed approx. 400cups of SENSEO ® coffee).Why to descaleYour reasons to descale:• It prolongs the life of your SENSEO ® coffeemachine• It ensures maximum cup volume• It ensures maximum coffee temperature• The machine produces less sound duringbrewing• It prevents malfunctioningIf the descaling procedure is not performedcorrectly, scale residue remains behind in themachine. This causes scale to build up morequickly and may cause permanent and irreparabledamage to the machine.Use the correct descaling agentUse SENSEO ® Descaler (HD7012, HD7011) only.It has been developed to ensure better machineperformance and operation. Each descalingmixture can be used only once. For moreinformation about this descaler, visit our websitewww.philips.com.B Warning:Never use a descaling agent based on mineralacids such as sulphuric acid, hydrochloric acid,sulphamic acid and acetic acid (e.g. vinegar).These descaling agents may damage yourSENSEO ® coffee machine.9.1 Descaling procedureThe CALC button lights up to indicate youhave to descale your machine. The descalingprocedure consists of a descaling cycle and 3flushing cycles. Do not interrupt the descalingcycle and do not switch off the machine beforeyou have performed the flushing cycles. The wholeprocedure takes approximately 60 minutes.4 Clean the outside of the machine with a moistcloth.5 Clean the water distribution disc and therubber sealing ring with a moist cloth.6 Clean the water inlet on the machine with amoist cloth.7 Clean the water reservoir, the coffee spout,the coffee collector, the drip tray, the cup tray,the milk tube, the milk spout and the podholders in hot water or in the dishwasher.C Caution:Be careful not to damage the valve in thebottom of the water reservoir if you usea washing-up brush to clean the waterreservoir.D Note:Check if the sieve in the centre of the podholder is clogged. If this is the case, unclog thesieve by rinsing the pod holder under the tap.If necessary, use a washing-up brush to cleanthe sieve.8 When you are finished with cleaning, placethe top part of the coffee spout back ontothe bottom part.9 Place the water reservoir, the coffee collectorand the drip tray back into the machine.10 Slide the coffee spout into the machine.11 Put the plug the back in the wall socket.ENGLISH