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HD7872/10 /11 /12 SCHEMATICS UI PCBA Water level On/Off button sensor 1-cup button 2-cup button Toggle button Communi cation On/Off LED Water 1-cup LED Supply Boiler 2-cup LED System Toggle LED PCBA Fuse Regular LED Strong LED Pump M Memory LED Descale LED Fuse Buzzer...
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HD7872/10 /11 /12 DISASSEMBLY- AND RE-ASSEMBLY ADVISE To remove the brewhead assembly: • Remove the back cover. • Now use the screwdriver to trace around the edge of the tray panel assembly and base plate until you reach • Remove the boiler, or simply lay it aside. the position of the drip tray.
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HD7872/10 /11 /12 REPAIR INSTRUCTION Please note, as the appliance is equipped with a capacitive touch panel as a user interface, special 2-cup button attention is required to be able to enter several service modes. The capacitive buttons need 0,5 seconds to initialize after the mains is connected.
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HD7872/10 /11 /12 REPAIR INSTRUCTION BOILER RESET: Boiler-reset-step 0 Entry to boiler reset mode: ME/HE selection 1. Connect mains; In this appliance HE (High-End) should be selected; 2. After 0.5 second and before 1.5 second operate the Strong LED on. 1-cup button.
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HD7872/10 /11 /12 REPAIR INSTRUCTION SENSOR AND LED TEST Volume adjustment The PCB circuit board makes it possible to adjust the To validate the assembly and electrical correctness of an volume output by means of pushing the one-cup and two- appliance, especially during testing and debugging phase, cup user controls.
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HD7872/10 /11 /12 PARTS LIST Service code Description Remark 4222 259 44211 Pad support 1-cup Deep black 4222 259 44221 Pad support 2-cup Deep black 4222 247 67501 Collector Deep black 4222 259 53552 Spout assy complete Oyster metallic 4222 247 68661 Driptray cover Deep black HE 4222 247 68441...
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