18The on/off light flashes quickly.• There is not enough water in the water reservoir.Fill the water reservoir and make sure youplace the reservoir properly into the machine.• The float in the water reservoir might be stuck.Empty the water reservoir and shake it a fewtimes to release the float. Clean the waterreservoir with hot water and some washing-upliquid or in the dishwasher.• You are using the machine at an ambienttemperature below 10*C.Only use the machine at an ambienttemperature above 10*C.• If these solutions do not solve the problem,contact the Philips Consumer Care Centre inyour country.The CALC light is on continuously.• You need to descale the machine.• Perform the descaling procedure as describedin chapter ‘Descaling’. Do not switch off themachine during descaling.The CALC light is on continuously after descaling.• The descaling procedure has not been completed.• Perform the descaling procedure as describedin chapter ‘Descaling’. Do not switch off themachine during descaling.The CALC light flashes.• The descaling procedure is in progress.• Let the machine complete the descalingprocedure. See chapter ‘Descaling’.The on/off lights flashes quickly and the CALClight flashes slowly.• The water reservoir is empty.• Rinse and fill the water reservoir and makesure you place the reservoir properly into themachine. Press the CALC button to continuethe descaling procedure as described inchapter ‘Descaling’.12 Guarantee andsupportIf you need information or support, pleasevisit www.philips.com/support or read theseparate worldwide guarantee leaflet.The purchase of the Philips SENSEO ® coffeemachine does not exhaust any of the rights of D.E.Master Blenders 1753 or Philips under any of theirpatents nor does it confer upon the purchaser alicence under these patents.Always return the machine to a service centreauthorised by Philips for examination or repair.Do not attempt to repair the machine yourself,otherwise your guarantee becomes invalid.13 Troubleshooting13.1 SENSEO ® coffee machineThis chapter summarises the most commonproblems you could encounter with the machine.If you are unable to solve the problem with theinformation below, visit www.philips.com/support for a list of frequently asked questions orcontact the Consumer Care Centre in your country.The on/off light is on continuously.• You need to flush the machine before first use.Flush the machine before first use, see chapter‘Flushing the machine before first use’.• The machine is ready to brew.The on/off light flashes slowly.• The machine is heating up.• If this takes longer than two minutes, contact thePhilips Consumer Care Centre in your country.