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Miele G 7856 Operating Instructions Manual
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Miele G 7856 Operating Instructions Manual

Commercial dishwasher
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Operating instructions
Commercial dishwasher
G 7856
G i
To avoid the risk of accidents or
damage to the machine it is
essential to read these operating instructions
before it is installed, commissioned and used for the
first time.
M.-Nr. 05 234 501

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  • Page 1 Operating instructions Commercial dishwasher G 7856 To avoid the risk of accidents or damage to the machine it is essential to read these operating instructions before it is installed, commissioned and used for the first time. M.-Nr. 05 234 501...

  • Page 2: Table Of Contents

    Contents Description of the machine ......... . 3 Guide to the machine.

  • Page 3: Description Of The Machine

    Description of the machine This Miele machine is a front-loading commercial dishwasher, with very short batch times. It is especially suitable for use in cafes, fast food outlets, restaurants, guest houses etc. It operates on the freshwater system and is equipped with a water softener...

  • Page 4: Guide To The Machine

    Guide to the machine a On/Off button (I-0) j Optical interface ( for Service Technician use only) b Door release button k Add liquid cleaning agent indicator c Display light (only applies to machine fitted d Delay start indicator light (see with an optional external DOS Programming special functions) module)
  • Page 5 Guide to the machine a Connection for DOS module d Dispenser for powder cleaning agent (optional dispenser pump for liquid e Rinsing agent reservoir cleaning agent) at the rear of the (with dosage selector) machine b Filter combination c Salt reservoir (for the water softener)

  • Page 6: Warning And Safety Instructions

    This machine should be requirements. Incorrect use can lead commissioned and then maintained to personal injury and damage to by a Miele authorised and trained ser- property. vice technician or other suitably qualified Read the operating instructions and competent approved person.
  • Page 7 Only use should be placed in the baskets with low-foaming cleaning agents which the pointed end facing downwards. have been approved by Miele. Some When using this machine in the types of soiling can also cause foaming higher temperature ranges be...
  • Page 8 In critical applications where very and the separate Installation Instructions. stringent requirements have to be met, it is strongly recommended that all the relevant factors for the process, such as cleaning agents, water quality etc., are discussed with the Miele Application Technology specialists.
  • Page 9 Warning and Safety instructions Using accessories Only use genuine Miele accessories with this machine. Consult Miele on the type and application of such equipment. Disposal of your old machine Before disposing of your old machine first make it unusable. Disconnect from the mains, cut off the cable near the machine and any plug from the cable.

  • Page 10: Caring For The Environment

    Caring for the environment Disposal of the packing Disposal of your old appliance material or machine The transport and protective packing Electrical and electronic appliances / has been selected from materials which machines often contain materials are environmentally friendly for disposal which, if handled or disposed of and can normally be recycled.

  • Page 11: Before Using For The First Time

    If you are not satisfied with before refilling that the package the results from one brand, try another contains reactivation salt. quality brand before contacting Miele for advice. Add rinsing agent The filter combination at the base of...

  • Page 12: Opening And Closing The Door

    Opening and closing the door To open the door a To close the door ^ Press the door button in as far as it ^ Lift the door upwards and push until will go, and at the same time, grip the it clicks shut.

  • Page 13: Water Softener

    Water softener The water needs to be softened to For future servicing it is useful to make avoid calcium deposits building up on a note of your water hardness level. utensils and in the machine itself. ^ Enter your water hardness level here: To ensure a steady supply of soft water, °d / mmol/l the water softener unit must always be:...
  • Page 14 Water softener Table of settings °d mmol/l °f Setting °d / mmol/l °f Setting (German mmol/l scale) 10.1 10.3 10.4 10.6 10.8 *) factory setting **) 1-36 only for U.K. 19 *) Machines without a water softener are set to 0 at the factory. This setting of 0 must not be changed on these machines.

  • Page 15: Setting The Water Softener

    Water softener Setting the water softener ^ Switch the machine off. ^ Turn the programme selector to the STOP position f. ^ Press 4 and 6 at the same time, hold them in and, whilst doing so, switch the machine on with the I-0 button.

  • Page 16: Filling The Salt Reservoir

    These could contain components which are insoluble in wa- ter which could result in damage to the water softener. If in doubt consult your Miele Professional Department. The salt reservoir holds approx. 2.5 kg of salt. Inadvertently filling the salt reservoir with cleaning agent will damage the water softener.

  • Page 17: Salt Indicator

    Water softener Salt indicator When the salt reservoir is empty the k indicator light b comes on to remind you to fill the reservoir. Reactivation takes place automatically during a programme. The programme sequence indicator light k a lights up whilst this is happening.

  • Page 18: Loading The Machine

    Loading the machine Loading the machine ^ The water duct for the spray arm in the middle of the upper basket must Preparing the load not be obstructed. ^ Empty all containers before loading ^ The spray arms must not be blocked into the machine.
  • Page 19 Loading the machine Loading examples: Individual top and bottom baskets O 881 Top basket O 889 Top basket carrier for 20 cups, 24 saucers or 12 dessert to take various inserts, e.g. containers plates. for cutlery and glasses. U 880 Bottom basket U 880 Bottom basket with 2 x E 216 half inserts each for 15 with E 884 insert 1/1 for 20 large plates...
  • Page 20 Loading the machine Glass set GG/F-GL O 882 Top basket for 27 glasses Ø 65 mm. U 880 Bottom basket with 2 x E 205 half inserts each for 14 glasses Ø 65 mm.

  • Page 21: Adjusting The Top Basket

    Loading the machine Adjusting the top basket Items not suitable for dishwashers The top basket can be adjusted above and below the middle position by 2.5 ^ Cutlery with wooden or horn handles. cm. It is set in the middle position on ^ Wooden or plastic cutting boards.

  • Page 22: Adding Rinsing Agent

    Adding rinsing agent Rinsing agent is necessary to ensure Adding rinsing agent water does not cling and leave marks on items during the drying phase and to help items dry faster after they have been washed. Rinsing agent is poured into the storage reservoir and the amount set is dispensed automatically in the final rinse.
  • Page 23 Adding rinsing agent ^ Add rinsing agent only until it is visible on the surface of the filter in the opening. ^ Close the flap firmly. The flap must audibly engage, otherwise water could get into the rinsing agent reservoir during the programme. ^ Mop up any spilt rinsing agent.

  • Page 24: Setting The Dosage

    Adding rinsing agent Setting the dosage The dosage adjuster in the opening has settings from 1 to 6 (1-6 ml). It is set to 3 (3 ml) at the factory as the recommended dosage for rinsing agent. ^ Use a higher setting if there are marks on the surface of utensils after drying.

  • Page 25: Adding Cleaning Agent

    Adding cleaning agent Only use cleaning agents suitable for specialist machines. Do not use detergents formulated for domestic dishwashers. Powder cleaning agent is dispensed via the dispenser for powder cleaning agents in the door or liquid cleaning agent via the DOS module (available as an optional extra - see “Note”...
  • Page 26 Maintenance of the dispensing Programme J SUPER SHORT: system To ensure trouble-free operation, regular maintenance should be carried out at specified intervals by a Miele approved service technician. Every 12-18 months Replace the dispensing hoses in the DOS modules. Take great care when handling liquid agents and additives.

  • Page 27: Selecting A Programme

    Programme selection Choose your programme according to the type of instruments or utensils being cleaned, and the degree of soiling. The different programmes and their uses are described overleaf in the Programme Chart.

  • Page 28: Programme Chart

    Programme chart Programme When to use Powder cleaning agent (when not using liquid cleaning agent) Follow manufacturer’s instructions To rinse heavily soiled items, (e.g. for removing soiling or to prevent soiling drying on to dishes PRE-RINSE when a complete programme does not yet need to be run).
  • Page 29 Programme sequence Economy Pre-wash Main wash Economy Interim Interim Final Drying pre-wash interim rinse I rinse II rinse (Additional rinse prog.) 50°C/1’ —/1’ 50°C/1’ 50°C/1’ 55°C/1’ 60°C/1’ X *) 55°C/1’ 55°C/1’ 55°C/2’ 60°C/1’ 60°C/3’ 60°C/1’ 65°C/3’ 60°C/1’ X = Sections included in a programme (with temperature/temperature holding time) To change a temperature or temperature holding time, see Programming special functions.

  • Page 30: Operation

    Operation Switching on Once the programme has started, all ^ Close the door. other programmes are blocked. If the ^ Open the stopcocks (if turned off). programme selector is then turned to another programme, the values shown ^ Press the I-0 button. in the display go out.

  • Page 31: Changing A Programme

    Operation Changing a programme Programme end Provided the START button has not yet The programme has ended when no been pressed, a wrongly selected more programme sequence indicator programme may be changed as lights are lit up and the "Start" indicator light 6 has gone out.

  • Page 32: To Cancel A Programme

    Operation To cancel a programme Once a programme is running it should only be cancelled in extreme cases, e.g. when articles in the machine rattle or jostle against each other and have to be rearranged. ^ Turn the programme selector to the f position (the programme is cancelled after approx.

  • Page 33: Programming Special Functions

    Programming special functions For future servicing work, please Value set: document any alterations to the stan- dard factory settings. 2. Selecting a second interim rinse Enter any alterations in the relevant "Interim rinse II" can be programmed in Value set:_________ box. to improve interim rinsing in all programmes (with the exception ofD 1.
  • Page 34 Programming special functions 3. Selecting economy interim rinse (only for J “SUPER-SHORT”) ^ Turn the programme selector to STOP ^ Switch the machine off. ^ Press and hold 4 and 6 at the same time and, whilst doing so, switch the machine on with the I-0 button.
  • Page 35 Programming special functions 4. Venting and setting the dosage on Setting the dosage: DOS modules G 60 and C 60 Set the dosage according to the (optional extra) manufacturer’s recommendations. ^ Set the dosage selector on the DOS The machine needs 7 litres of water in module to position 10 (applies to the main wash stage of the programme.
  • Page 36 Programming special functions ^ "Main wash" temperature: 5. Altering the temperature and/or the Press 3 three times, E03 for temperature holding time in the programming level 3 will appear in “Main wash” and “Final rinse” the display. programme stages ^ Turn the programme selector to the Please make a note of any changes programme which needs to be to the temperature and / or the...
  • Page 37 Programming special functions ^ Turn the programme selector back to the programme which needs to be changed. The actual value appears in the display after °C. ^ Press 4 or hold it in, until the required value appears in the display. ^ Final rinse temperature holding time: Turn the programme selector to the...
  • Page 38 Programming special functions 6. Delay start and setting the delay Value set: start time The start of a wash programme can be b) Setting the delay start period delayed by up to 9 hours and 30 The delay start period (from 30 minutes minutes in 30 minute stages.
  • Page 39 Programming special functions ^ Press 6 again. The change has 7. Audible tone (Buzzer) been recorded. This special function allows you to programme a buzzer (lasting up to a Value set: maximum of 30 seconds) for the following functions: Note: The buzzer can be switched off early –...
  • Page 40 Programming special functions 8. Re-setting all parameter changes back to the factory settings. ^ Turn the programme selector to STOP ^ Switch the machine off. ^ Press and hold 4 and 6 at the same time, and whilst doing so switch the machine on with the I-0 button.

  • Page 41: Cleaning And Care

    Cleaning and care Cleaning the filters in the wash cabinet The machine must not be used without all the filters in place. The filter combination in the base of the wash cabinet should be inspected regularly and cleaned if necessary. Caution: Watch out for glass splinters which could cause injury.
  • Page 42 Cleaning and care Cleaning the spray arms Waste particles can lodge in the spray arm jets. The spray arms should be inspected and cleaned regularly (approx. every 6 months). ^ Use a sharp pointed object to push particles into the spray arm jets and rinse well under running water.
  • Page 43 Cleaning and care Cleaning the drain pump and The drain pump is situated under the non-return valve (see arrow). non-return valve If water has not been pumped away at the end of a programme the drain pump or the non-return valve might be blocked.
  • Page 44 Cleaning and care Cleaning the filters in the water ^ Replace filters and the seal. Make sure they are sitting correctly. inlet ^ Reconnect the hose to the water inlet, Filters are incorporated in the screw making sure that it goes back on connection of the water inlet hose to straight.

  • Page 45: Correcting Minor Faults

    With the aid of the following explanatory The wash cycle finishes too early and the p / 6 indicator light flashes notes, minor faults can be corrected without contacting the Miele Service (fault code F A appears in the Dept. display) Any work on the electrical components –...

  • Page 46: Customer Service

    This machine has a resettable heater again, please contact your authorised limiter which will switch off the heaters if Service Dealer or the Miele Service Department. See back cover for they over-heat. This could be caused for example, by large articles covering addresses.

  • Page 47: Installation

    Installation ^ Open the door. Please refer to the installation diagram supplied with the machine. Furniture and fittings installed near the machine must be of a commercial standard able to withstand the effects of steam and condensation. The machine must be installed correctly and levelled.
  • Page 48 Depending on the requirements for building under, the following kits can be ordered from the Miele Spares Dept.: Cover plate (protects the worktop) The underside of the worktop is protected against water damage by a stainless steel plate.

  • Page 49: Electrical Connection U.k

    ^ Holding the plinth panel at both ^ The mains connection cable may sides, pull gently outwards from only be replaced by an original Miele beneath a and pull it off b. spare part or an apppropriate cable with wire end ferrule.

  • Page 50: Plumbing

    10 bar (1000 kPa). If the water pressure is not in the range of 0.5 to 10 bar (50-1000 kPa) the p / 6 indicator light may come on and fault code F2 E in the display. Please contact the Miele Service Department.
  • Page 51 Plumbing The inlet hoses must not be shortened or damaged in any way (see illustration). See also the installation diagram supplied.
  • Page 52 Hose clips are supplied for securing it in position. ^ A longer drain hose (up to 4 m long) is available to order from the Miele Spare Parts Dept. ^ The drainage system must not exceed 4 metres. See also the installation diagram...

  • Page 53: Technical Data

    Technical data Height: 85 (82) cm Width: 60 cm Depth: 60 cm Voltage: see data plate Rated load: see data plate Fuse rating: see data plate Mains connection cable: approx. 1.8 m Water pressure (flow rate): 0.5 - 10 bar (50 -1000 kPa) Cold and hot water connections: up to max.
  • Page 56 Alteration rights reserved / 3105 M.-Nr. 05 234 501 / 01...

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