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HD7855/60 / HD7856/60 TECHNICAL INFORMATION General Coffee and Milk specifi cations: Black coffee Milk recipe In-cup volume (in mL) Regular Strong Cappuccino Latte Macchiato Café Latte General WEU version France specifi c version Milk recipe Temperature indication (in °C) Black coffee Cappuccino Latte Macchiato Café...
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HD7855/60 / HD7856/60 TECHNICAL INFORMATION Hydraulic fl owchart Three-way valve Steam connector Venting Brew valve head Water Container Boiler Thermo block Steam Water pump Overpressure pump Inside the appliance valve Legend: Low pressure tube High pressure tube a - p Low pressure connections aa - jj High pressure connections...
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HD7855/60 / HD7856/60 TECHNICAL INFORMATION Tools Tools required for repair and diagnostics are: • Flathead screwdriver # 0, # 2 • Torx screwdriver (T15) • Cutter • Cable tie tightening tool • Digital Multimeter º Fluke 116 or comparable device with a base accuracy for temperature of 0,05 % or ± 0,3 °C Temperature probe 80PK-22 (80AK-A Thermocouple adapter required) •...
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HD7855/60 / HD7856/60 DISASSEMBLY- AND RE-ASSEMBLY ADVISE Remove all loose parts like Driptray, water container and Remove the side covers. pod-holders. • To be able to remove the side covers the top cover surrounding the lid needs to be removed, to do this two Remove the back cover.
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HD7855/60 / HD7856/60 DISASSEMBLY- AND RE-ASSEMBLY ADVISE Remove the brewhead. • To open the lid, undo the eight snaphooks holding the lid in place. To be able to remove the lid completely the • Unhook the 3-way valve from the Brew chamber back lever needs to be in the Open position (flipped up).
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HD7855/60 / HD7856/60 REPAIR INSTRUCTION Boiler / Brew chamber Cordset, Earthwire and Thermoblock 1. Brewhead sensor wire must be taped as far away from 1. Ferrite bead must be in place and ty-wrapped to fi lter the boiler wires as possible. (EMC) out interference.
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HD7855/60 / HD7856/60 REPAIR INSTRUCTION Descaling Volume adjustment Scale builds up inside the machine during use. It is essential Note: Volume adjustment may only be carried out in case the ® to descale the SENSEO coffee machine when the CALC repair technician is sure there is no other underlying light goes on.
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HD7855/60 / HD7856/60 REPAIR INSTRUCTION Service modes The appliance is equipped with a dedicated service mode. The service mode enables you to carry out some settings and tests. Please note, as the appliance is equipped with a capacitive touch panel as a user interface, special attention is required to be able to enter several service modes.
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HD7855/60 / HD7856/60 REPAIR INSTRUCTION • Sensor & LED test To validate the assembly and electrical correctness of an appliance, especially during testing and debugging phase, a sensor and LED test is very useful. Please keep in mind that it is not an automated test and only intended as indication. Test-step 0: Entry to test mode 1.
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HD7855/60 / HD7856/60 REPAIR INSTRUCTION Functional test diagram for milk-based appliances 11-24...
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HD7855/60 / HD7856/60 REPAIR INSTRUCTION Additional functional test for milk recipe volume and temperature START Appliance does start? Appliance Heating (2650 RESET appliance & Is pump working? Flush with 1 pod holder Water out of spout? (within 5 sec?) LEAKAGE? 1st Cup COFFEE Volume / temperature CAPPUCHINO temperature...
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HD7855/60 / HD7856/60 PARTS LIST Service code Description Remark 4222 25956731 Milk Frothing Unit (MFU) assy Chrome / Misty dawn 4222 259 56511 MFU spout cover Chrome 4222 240 60792 MFU lock 4222 247 71392 Setting chamber 4222 247 71341 Steam nozzle assy Star white 4222 247 71372...
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HD7855/60 / HD7856/60 PARTS LIST Service code Description Remark 2510 4222 259 60971 Programmed Top lid assy printed Black 2520 4222 259 60421 Lever assy Deep black / Misty dawn 2530 4222 247 61310 Push rod 2540 Hose 3WV - BC 2550 4222 240 01410 Slider spring...
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