Philips Senseo HD7817/11 Service Manual

Also see for HD7817/12: Quick start guide

HD7817/10 /11 /12 /13 /14 /193-7DescalingDescaling is an important element in Senseo maintenance.It should be done at least once every 3 months, up to 6times a Year!This will prolong the life of your appliance and willguarantee optimal brewing results for a long time.Use the correct descaling agent.Only citric acid-based descalers are suitable for descalingthe SENSEO® machine. This type of descaler descales theappliance without damaging it. For the correct amount, seeunder ‘Descaling procedure’ below. Each descaling mixturecan be used only once. After use, the descaling mixture isno longer active.We advise you to use the special SENSEO® Descaler(HD7006). Read the instructions on the package of thedescaling agent.Never use a descaling agent based on mineral acids such assulphuric acid, hydrochloric acid, sulphamic acid and aceticacid (e.g. vinegar). These descaling agents may damageyour SENSEO® coffee machine.• Follow the steps in the section headed “Descale theappliance” see DFU (Direction for Use manual)Volume adjustmentThe PCB circuit board makes it possible to adjust thevolume output by means of pushing the one-cup andtwo-cup user controls.How to adjust the volume output:1. Be sure the boiler is filled properly, other wise performfi ll procedure see DFU for instructions.2. Switch appliance on and wait until the unit is ready tobrew.3. Be sure a pod holder is placed, but without a CoffeePOD. (Only adjusting with plain water)4. Place a cup on the drip tray cover and push theone-cup button.5. When the appliance has finished it is stabilized toperform the volume adjustment.6. Empty the cup, podholder and push again for one cupsetting, measure the volume output with a graduatedbeaker. In the table you can find the requirements forthe minimum / maximum volume output cc/mL valuesdepending from the country version:One-cup setting, Including Pod holder, water spec.(Without Coffee pod)Min. watercc/mLMax. watercc/mLFrance version 104 120General (Europe) version 125 1417. Unplug the appliance from the mains.8. Press the 1- and 2 cup button simultaneously andplug the mains on.9. When above step succeeded the led will turn oncontinuously.10. Depending if the volume has to de- or increase youhave to push the one- or two cup button.Every time you push the 1- or 2 cup button the LEDwill turn off for 0.5 second (feedback to user) and thepump time will be shortened or lengthened for 0.5seconds depending which button was pushed.Pushing 1 cup button pump, time will be shorten with0.5 sec is approximately - 3.5 cc/mL (less coffee)Pushing 2 cup button pump, time will be lengthen with0.5 sec is approximately + 3.5 cc/mL (more coffee)When the volume has to increase with 10 cc forexample, push the 2 cup button 3 times.The new value will be stored when you switch theappliance off by pushing the main switch.(LED will turn off)11. Turn appliance on again and brew one cup, measurethe volume. In case the volume is not withinspecifi cation repeat steps 6 - 11.12. End.Automatic filling procedure:The Senseo PCB contains a automatic filling proceduresoftware routine.This fill routine is only meant for back-up.Normally the consumer has to follow the guidelines statedin the DFU.The filling procedure functions as follows:The consumer has to fill the water container and has to plugthe appliance on the mains.When the Senseo main switch has been pushed the mainswitch LED will light continuously. This is only the casewhen the Senseo has not finished the filling procedurecompletely! (First use)When the consumer pushes the one or two-cup button, theSenseo will start automatically the pump to fill the boiler.When the boiler is filled the pump stops pumping.(Pump time approximately 22 seconds)When the filling procedure has been successful thesoftware will clear a Boiler_empty_flag in the Eeprom.By means of this Boiler_empty_flag the system knows theboiler is filled or not!When the Senseo is switched off or disconnected from themains, the value of the Boiler_empty_flag is stored in theEeprom chip.Repair instruction