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HD7766/00/D TECHNICAL INFORMATION De-scaling When the appliance indicates it needs to be descaled, operate the coffeemaker a few times with vinegar or with a 10-15% solution of either vinegar (acetic acid), citric acid or tartar acid, into cold tap water.
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HD7766/00/D TECHNICAL INFORMATION Self-Check mode The appliance is equipped with a self-check mode, this enables you to quickly check the function of the main components of the unit. Keep the On/Off button pressed while Left side Right side display plugging the mains cord into the socket.
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HD7766/00/D REPAIR INSTRUCTION Repair of this appliance should be carried out on part and or assembly level, most repairs can be allocated to a couple of main components: • Bean container and duo-bean mechanics Disassembly instructions until Step 1. • User interface assy Disassembly instructions until Step 4.
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HD7766/00/D DISASSEMBLY INSTRUCTIONS Remove all removable and detachable items like the Bean container lid, jug, fi lter holder and brush. The fi lter door can be removed for convenience by undoing both latches on the top and bottom side of the hinge.
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HD7766/00/D DISASSEMBLY INSTRUCTIONS Step 4: Bottom cover & Main PCBA Step 5: Heater assy To be able to replace the components in the top side of To replace the heater assy disconnect the leads from the the appliance (like the Grinder and Synchro motor), their main PCBA and the Silicon hoses from the pinions on the leads need to be disconnected from the main PCBA.
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HD7766/00/D REASSEMBLY INSTRUCTIONS Basically the reassembly needs to take place tracing the Gasket for the wires entering the UI panel steps needed to disassemble the appliance. There are some critical attention points: All the gaskets in the appliance must be reinstalled properly...
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HD7766/00/D REASSEMBLY INSTRUCTIONS All the liquid seals, when broken, need to be replaced. This Bottom Cover includes cleaning the mating surfaces and applying suffi cient Upon reinstallation of the bottom cover, please mind that new liquid sealing. the notch on the PCBA holder fi ts into the recess of the bottom cover.
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HD7766/00/D PARTS LIST Service code Description Service code Description Door assembly 9965 100 64754 Steam vent seal 9965 100 64722 Filterholder assy 9965 100 64759 UI assy seal 9965 100 64767 Filterdoor assy 9965 100 71806 PCB assembly in box...
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