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Miele G 7893 Operating Instructions Manual

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Operating instructions

G 7893
en - GB, AU
To avoid the risk of accidents or
damage to the machine it is
essential to read these instructions
before it is installed, commissioned
and used for the first time.
M.-Nr. 07 780 311



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  Summary of Contents for Miele G 7893

  • Page 1: Operating Instructions

    Operating instructions Washer-disinfector G 7893 en - GB, AU To avoid the risk of accidents or damage to the machine it is essential to read these instructions before it is installed, commissioned and used for the first time. M.-Nr. 07 780 311...
  • Page 2: Table Of Contents

    Contents Warning and Safety instructions ........5 Symbols on the machine .
  • Page 3 Contents Cancelling a programme ..........39 Programme cancellation due to a fault.
  • Page 4 Contents Drying unit (TA) - Maintenance ........57 SF2 in the display: Change the filter .
  • Page 5: Warning And Safety Instructions

    This washer-disinfector should be safety requirements. Please note commissioned and then maintained by that incorrect use can lead to a Miele authorised and trained service personal injury and damage to technician only. A Miele service property. contract is recommended to ensure...
  • Page 6 Warning and Safety instructions Take care when handling chemical Please be aware that the agents such as cleaning agent, washer-disinfector may be operating at neutralising agent, rinsing agent etc. high temperatures. If the door is These may contain irritant or corrosive opened with the emergency release ingredients.
  • Page 7 In the event of any carried out or parts replaced. damage or material deterioration please contact Miele. If it is necessary to interrupt a programme in exceptional Pre-treatments with cleaning or circumstances, this may only be done disinfecting agents can create foam, as by authorised personnel.
  • Page 8 Miele. Otherwise, the components in the machine may become damaged. Please follow the advice on installation in these instructions and the...
  • Page 9: Symbols On The Machine

    Consult Miele on the type genetically modified material, blood or and application of such equipment. other bodily fluids, and must be decontaminated before disposal.
  • Page 10: Intended Use

    Intended use This washer-disinfector can be used to The term "item to be processed" is used clean, rinse, disinfect (thermally and throughout these instructions to refer to chemo-thermally) and dry a wide range products which are not named of reusable medical and laboratory specifically.
  • Page 11 Intended use The cleaning result must ensure that the instruments have been disinfected correctly, that no residues are left behind, that subsequent sterilisation can be carried out and that the instruments can be used again safely. Medical products are best reprocessed using the DESIN varioTD programme.
  • Page 12: Guide To The Machine

    Guide to the machine On/Off switch I-0 Check/Fault indicators: Inlet/drain Door release Add salt Display Add neutralising agent Add rinsing agent button to switch between the DOS Optical interface for displays for: service technician; - actual temperature Add liquid cleaning agent - elapsed time indicator when connected - current block...
  • Page 13 Guide to the machine Rinsing agent reservoir (with dosage Connection for DOS module K 60 at the rear of the machine selector) Service panel Rinsing agent level indicator Filter combination At the rear of the machine: Salt reservoir – Interface connector RS 232 (optional) Dispenser for powder cleaning agent –...
  • Page 14: Caring For The Environment

    Caring for the environment Disposal of the packing Disposal of your old machine material Electrical and electronic machines often contain materials which, if The transport and protective packing handled or disposed of incorrectly, has been selected from materials which could be potentially hazardous to are environmentally friendly for disposal human health and to the environment.
  • Page 15: Opening And Closing The Door

    It is still possible to open the door during the PRE-RINSE DRAIN programmes. The machine can be programmed (by a Miele approved service technician) to open during "Drying". To close the door The emergency release cord is Lift the door upwards and push until it located at the bottom of the machine clicks shut.
  • Page 16: Water Softener

    Water softener Programming the water In order to achieve good cleaning results, the washer-disinfector needs to softener operate with soft water. Hard water Switch the washer disinfector off. results in the build-up of calcium deposits on the load and inside the Turn the programme selector to wash cabinet.
  • Page 17 Water softener Table of settings °dH mmol/l °f Setting °dH mmol/l °f Setting 0 *) 10,1 10,3 10,4 19 **) 10,6 10,8 *) The "0" setting is only for machines which do not have a water softener **) Factory default setting...
  • Page 18: Filling The Salt Reservoir

    2.5 litres of can impair the functioning of the water water to enable the salt to dissolve. softener. If in doubt consult the Miele Once the washer-disinfector has Professional Department. been used, there is always sufficient water in the reservoir.
  • Page 19: Add Salt Indicator

    Water softener Add salt indicator Remove the funnel and wipe any residual salt off the seal and the Reactivation takes place automatically screw threads on the socket. during a programme. Screw the cap back on firmly. The programme sequence indicator light lights up whilst this is Run the PRE-RINSE...
  • Page 20: Areas Of Application

    Areas of application This washer-disinfector can be fitted At the end of each programme: with a top and bottom basket or a – Carry out a visual check of the load mobile unit. Various inserts and special for cleanliness. baskets are also available for a wide variety of instruments and utensils.
  • Page 21 Areas of application – Deep-sided items should be placed Preparing the load at an angle to make sure water runs Empty all containers before loading off them freely. into the machine (paying particular – Tall, narrow, hollow items should be attention to regulations regarding placed in the centre of the baskets to infectious diseases and epidemics).
  • Page 22: Water Connection Spring Adapter

    Areas of application Water connection spring Height adjustable top basket adapter The top basket can be adjusted above and below the middle position by 2 cm. Make sure that the spring adapter for water connection engages correctly Different height items can be when a basket or injector unit is reprocessed in this machine depending inserted in the machine.
  • Page 23: Laboratory Utensils

    Areas of application Laboratory utensils The following instructions relate only to basic preparation and loading of Wide-necked laboratory utensils, e.g. laboratory utensils. beakers, wide-necked conical flasks and Petri dishes, or cylindrical vessels, – Petri dishes and similar should be e.g. test tubes, are washed and rinsed placed in the correct insert with the internally and externally by the rotating soiled side facing the centre.
  • Page 24 Areas of application Upper basket O 188/1 E 106/2 For various inserts, e.g. E 103 for test For wide-necked beakers, measuring tubes, AK 12 for funnels and beakers, cylinders or medicine bottles. E 118 for Petri dishes, or E 134 for microscope slides.
  • Page 25: Chemical Processes And Technology

    Chemical processes and technology General notes Problem How to resolve it If seals, hoses and plastics in the – Establish the cause of the damage washer-disinfector suffer damage they and rectify it. will not be water-tight and will not See information regarding "Chemical function correctly.
  • Page 26 Hydrogen peroxide can release large – Only use approved processes such quanitities of oxygen. as OXIVARIO or OXIVARIO PLUS. – The wash temperature must be less than 70 °C when using hydrogen peroxide. – Please contact Miele for advice.
  • Page 27 – damage to elastomers and plastics should be periodically cleaned in the washer-disinfector, without a load and without – damage to certain plastics (e.g. de-foaming agent using the polycarbonate and plexiglass) in the ORGANIC programme. load being processed. – Please contact Miele for advice.
  • Page 28 Chemical processes and technology Soiling Problem How to resolve it The following substances can damage – Refit the washer-disinfector with oil elastomers (hoses and seals) and resistant elastomeres. plastics in the washer-disinfector: – Depending on usage wipe the lower – oil, wax, aromatic and unsaturated door seal on the washer-disinfector hydrocarbons, periodically with a lint-free cloth or...
  • Page 29 Chemical processes and technology Reaction between chemical agents and soiling Problem How to resolve it Natural oils and fats can be emulsified – Where available use the "OIL" with alkaline chemical agents. This can programme. lead to a heavy build-up of foam. –...
  • Page 30: Dispensing Chemical Agents

    Adding rinsing agent The dispensing of rinsing agent in the final programme block via DOS 2 has to be activated by a Miele service technician. Undo the screw cap. Rinsing agent is necessary to ensure water does not cling and leave marks on items, and to help items dry faster after they have been washed.
  • Page 31: Add Rinsing Agent Indicator

    Dispensing chemical agents Add rinsing agent indicator Setting the dosage Add rinsing agent to the rinsing The dosage adjuster in the opening has agent reservoir when the Add rinsing settings adjustable from 1 to 6 (1-6 ml). agent indicator lights up. It is set to 3 (3 ml) at the factory.
  • Page 32: Adding Neutralising Agent

    Dispensing chemical agents Adding neutralising agent When refilling the red container with neutralising agent you could place it Neutralising agent (pH-level: acidic) on the open wash cabinet door or on neutralises residues of alkaline cleaning a surface which is easy to clean. agents on the surface of instruments and utensils.
  • Page 33: Add Neutralising Agent Indicator

    Dispensing chemical agents Add neutralising agent indicator Refill the neutralising agent container or replace it with a full container when the Add neutralising agent indicator lights up. Please remember to refill the container in good time. Do not let it get empty.
  • Page 34: Adding Cleaning Agent

    K 60 (DOS 1 dispensing pump for liquid cleaning agent). The machine When using the following upper must be set up for this by a Miele baskets, liquid cleaning agent must approved service technician. The DOS be dispensed from a DOS module, module is connected externally.
  • Page 35 Some types of soiling may require different combinations of cleaning agents and other additives. The Miele Professional Department will be pleased to advise you. Add powder cleaning agent to the compartment. Close the dispenser flap.
  • Page 36: Operation

    Operation Selecting the Drying additional Switching on function Close the door. The Drying additional function may be Open the stopcocks. selected immediately after the programme has been selected (except Press the I-0 switch. with Pre-rinse programme When the programme selector is at To do this: a dot lights up in the display.
  • Page 37: Programme Sequence Indicators

    Operation Once the programme is running, all the * Wash block 5 (normally for chemical other programmes are blocked. disinfection) can be programmed in as If the programme selector is then an additional programme stage in freely turned to another programme, the programmable Programmes A, B and values shown in the display will go out.
  • Page 38: Programme End

    Operation Programme end Switching off The programme has ended when Press and release the I-0 switch. lights up constantly in the programme As the machine is fitted with an sequence display and the indicator electric door lock, the door can only has gone out.
  • Page 39: Cancelling A Programme

    Operation Cancelling a programme Turn the programme selector to The programme will be cancelled after Where a programme is approx. 2 seconds. cancelled, the items must be reprocessed. Open the door Caution. Water and items in the Programme cancellation due to a machine may be hot.
  • Page 40: Programmable Functions

    Programmable functions For future servicing work, please document any alterations to the factory default settings. Enter any alterations in the appropriate box. General notes: – Switch positions that have not been allocated a function are indicated in the middle part of the display by a bar ( - ). –...
  • Page 41: Resetting The Operating Hours Counter For The Filter In The Drying Unit

    Programmable functions Resetting the operating hours counter for the filter in the drying unit After the filter in the drying unit has been changed, the operating hours counter needs to be reset. Step Display / Result Press as often as necessary or hold it pressed in until E04 appears in the display.
  • Page 42: Dispensing Liquid Cleaning Agent Via Dos 1

    Programmable functions Dispensing liquid cleaning agent via DOS 1 Setting the dosage concentration The dosage concentration must be set exclusively for liquid cleaning agent. Set it according to the manufacturer's recommendations or the official standards required. The dosage concentration must not be altered even if powder cleaning agent is dispensed via the dispenser in the door.
  • Page 43: Dispensing Neutralising Agent Via Dos 3

    Programmable functions Dispensing neutralising agent via DOS 3 Setting the dosage concentration The dosage concentration for the neutralising agent must be set according to the manufacturer's recommenedations or the official standards required. Step Display / Result Press until E02 appears. Turn the programme selector to F.
  • Page 44: Buzzer

    – 3 short beeps followed by a 2 second pause, then 3 short beeps etc will sound as a reminder to remove a test item. The reminder to remove a test item function has to be programmed by an approved Miele service technician. The buzzer settings are displayed as numbers: Switched off...
  • Page 45: Changing Programme Parameters

    Programmable functions Changing programme parameters The settings for individual parameters set at the factory are outlined in the Programme chart at the end of these operating instructions. Programme parameters can only be changed if they are activated in a programme; see Programme chart. Any changes carried out must be documented, e.g.
  • Page 46: Changing The Temperature

    Programmable functions Changing the temperature Step Display / Result Press button as often as necessary or hold E09 for Main wash 1 pressed in until the level of the programme block E12 for Main wash 2 you wish to change appears in the display. E22 for Final rinse 1 E25 for Final rinse 2 E28 for Drying 1...
  • Page 47: Resetting To Factory Default Settings

    Programmable functions Resetting to factory default settings Step Display / Result Press as often as necessary or hold it pressed in until E33 appears in the display. Turn the programme selector to a programme. Factory default setting: Electronics have been programmed to another setting: when PP shows in the display.
  • Page 48: Setting The Time And Date

    Programmable functions Setting the time and date The serial interface contains the date and time. This data is transmitted to the report printer. You can reset the date and time, e.g. to change from summer to winter time. The individual values of date and time are activated according to the position of the programme selector: "1 o'clock"...
  • Page 49: Process Documentation

    Reports can be produced in German, English, French, Italian and Spanish. The process reports are printed on a report printer connected to the machine Please contact Miele if you require and then archived in paper form. further information about suitable printers and software.
  • Page 50: Maintenance

    – A programme will be run as a test 1000 operating hours, or annually by a Miele approved service technician. – Thermo electrical measurements will A service will cover the following: be taken –...
  • Page 51: Process Validation

    In the UK, safety checks should be The following need to be inspected: carried out to the machine every 3 months by a Miele approved service – All filters in the wash cabinet technician in accordance with EN ISO – The spray arms in the machine and 15883 and HTM 2030.
  • Page 52: Cleaning The Filters In The Wash Cabinet

    Maintenance Cleaning the filters in the wash Cleaning the coarse filter cabinet The filters in the base of the wash cabinet are designed to prevent coarse soiling getting into the circulation system. A build-up of coarse soiling can cause the filters to clog up. They should, therefore, be checked daily and cleaned if necessary.
  • Page 53: Cleaning The Flat And Micro-Fine Filters

    Maintenance Cleaning the flat and micro-fine filters Remove the coarse filter. Remove the fine filter from between the coarse and the micro-fine filters. Then remove the micro-fine filter together with the flat filter. Clean the filters. Replace the filters by carrying out the above steps in the reverse order.
  • Page 54: Cleaning The Spray Arms

    Maintenance Cleaning the spray arms Unscrew the upper spray arm. The spray arms can become blocked Loosen the knurled thumb nut to and should therefore be checked every unscrew the lower spray arm. day. Use a sharp pointed object to push After cleaning the spray arms, fit or particles into the spray arm jets, and screw them back into position.
  • Page 55: Cleaning The Control Panel

    When processing chemicals are being (fingermarks etc.) a stainless steel used, they should be monitored conditioning agent (available from regularly for any dispensing the Miele Spare Parts Department or irregularities. via the internet on can also be used. Do not use any cleaning agents...
  • Page 56: Baskets And Inserts

    Maintenance Baskets and inserts Baskets and inserts should be checked daily to make sure they are functioning correctly. The washer-disinfector is supplied with a check list. The following need to be inspected: – Check that rollers on baskets/inserts are free of hindrance and that they are secure.
  • Page 57: Drying Unit (Ta) - Maintenance

    SF2 in the display: Change the filter The filter must be changed if SF2 starts to flash in the display. To ensure the machine operates correctly, use original Miele HEPA filters only (classification 12). Remove the filter from its holder, and replace with a new one.
  • Page 58: Problem Solving Guide

    The following guide may help to find the reason for a fault and enable you to correct it. You should, however, note the following: Repairs should only be carried out by a Miele authorised and trained ser- vice technician in strict accordance with current local and national safety regulations.
  • Page 59 Problem solving guide Problem Possible cause Remedy DOS indicator Before trying to rectify the starts flashing before problem, you must: the start of a – Turn the programme programme. The selector to (the fault programme cannot be code goes out). started.
  • Page 60 Problem solving guide Problem Possible cause Remedy indicator starts Before trying to rectify the flashing before the problem, you must: start of a programme. – Turn the programme The programme selector to (the fault cannot be started. code goes out). –...
  • Page 61 Problem solving guide Problem Possible cause Remedy The Add salt indicator The salt reservoir has not Fill carefully with salt. light flashes. been replenished, meaning that the water softener could not be reactivated. A few minutes after the Before trying to rectify the start of a programme, problem, you must: indicator...
  • Page 62 Problem solving guide Problem Possible cause Remedy The programme is Before trying to rectify the cancelled and the problem, you must: indicator – Turn the programme flashes. selector to (the fault code goes out). – Switch the machine off with the I-0 switch.
  • Page 63 Problem solving guide Problem Possible cause Remedy Cleaning agent residue – Remove the residue. is left in the dispenser – Run the process again. for powder cleaning The dispenser for powder Make sure the dispenser is agent at the end of a cleaning agent was still dry before adding cleaning programme.
  • Page 64 Problem solving guide Problem Possible cause Remedy Glass utensils are The items are not suitable Only clean instruments that cloudy and etched. for machine processing. are suitable for machine processing in the machine. Neutralisation has not Fill the neutralising agent been carried out during container.
  • Page 65 Problem solving guide Problem Possible cause Remedy White residues and/or The water softener is Check the water hardness flecks are visible on programmed to a setting level of the water supply and items. which is too low. programme the water softener correctly.
  • Page 66 Problem solving guide Problem Possible cause Remedy The cleaning result is Baskets or inserts have Rearrange the items. unsatisfactory. been incorrectly loaded Do not overload baskets or or overloaded. inserts. The programme selected Select a suitable programme is not suitable for the or change the programme degree of soiling.
  • Page 67: Other Problems

    Remove the cause of the fault. Remove the service panel. Press the reset button on the heater limiter located on the right-hand side of the plinth. If this switch trips again, contact the Miele Service Department.
  • Page 68: Cleaning The Drain Pump And Non-Return Valve

    Other problems 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 69: Cleaning The Filters In The Water Inlet

    Other problems Cleaning the filters in the water To clean the filter inlet Disconnect the machine from the mains supply. Filters are incorporated in the screw connection of the water inlet hose to Turn off the stopcock and unscrew protect the water inlet valve. If these the water inlet hose.
  • Page 70: After Sales Service

    In the event of any faults that you cannot remedy yourself, please contact your authorised Service Dealer or Miele. See back cover for contact details. When calling your Dealer or Miele, please quote the model and serial...
  • Page 71: Installation

    Installation Building the machine under a Please refer to the installation continuous worktop diagrams supplied with the The machine lid must be removed as machine. follows: Open the door. Furniture and fittings installed near the machine must be of a commercial standard able to withstand the effects of steam and condensation.
  • Page 72 Cover plate (protects the worktop) To ensure stability, the machine must If required, a special cover plate can first be aligned and then screwed to the be ordered from Miele. worktop. This cover plate protects the underside Open the door.
  • Page 73: Electrical Connection

    – The mains connection cable may only be replaced by an original Miele spare part or an appropriate cable WARNING with wire end ferrules. THIS APPLIANCE – For technical data see data plate or MUST BE EARTHED wiring diagram supplied.
  • Page 74: Plumbing

    F E will appear in the in the machine, as well as in the display) please contact Miele for machine itself. advice. If the chloride content of the water exceeds 100mg/l, the risk of –...
  • Page 75 AD stopcock for purified recognised by the matt top surface. water. If the AD water supply is not used, the electronics must be re-programmed by a Miele approved service technician. The inlet hose will remain on the rear of the machine. IMPORTANT Australia and New Zealand.
  • Page 76: Drainage

    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 77: Technical Data

    * If installed at altitudes above 1500 m, the boiling point of the suds solution will be lower. Disinfecting temperature parameters should be lowered and the holding time increased (A value). This must be done by a Miele authorised service technician.
  • Page 78: Programme Overview

    A/B range, in accordance with § 18 IfSG. 93°C-10’ Programmes A to G and vario TD can be optimised to specific requirements on request by Miele Ser- vice. * Organic residues such as oils and fats may require conversion to oil-resistant elastomers.
  • Page 79 Programme overview Programme sequence Pre-wash Main wash Rinse Rinse Final rinse* Drying DOS 1 DOS 3 80°C 75°C 99°C 70°C 3 min 1 min 25 min 5 min DOS 3 DOS 1 DOS 3 50°C 75°C 70°C 99°C 70°C 1 min 3 min 1 min 25 min...
  • Page 80 Alteration rights reserved / Publication date: 26.08.2011 M.-Nr. 07 780 311 / 00 0366...