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Miele G 7893 Operating Instructions Manual

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Operating instructions

G 7893
en - GB, AU, NZ
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. 07 125 650



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  Summary of Contents for Miele G 7893

  • Page 1: Operating Instructions

    Operating instructions Washer-disinfector G 7893 en - GB, AU, NZ 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. 07 125 650...
  • Page 2: Table Of Contents

    Contents Warning and Safety instructions ........5 Symbols on the machine .
  • Page 3 Contents Programmable functions......... . . 35 The following applies to all programmable functions: .
  • Page 4 Contents Problem solving guide ..........53 Other problems .
  • Page 5: Warning And Safety Instructions

    The machine should be Incorrect use can, however, lead to commissioned and then maintained personal injury and damage to only by a Miele authorised and trained property. service technician. To ensure To avoid the risk of accidents and compliance with the Medical Devices...
  • Page 6 Warning and Safety instructions Personnel operating the machine When using this machine in the should be trained regularly. Untrained higher temperature ranges, be personnel must not be allowed access especially careful not to scald or burn to the machine or its controls. yourself or come into contact with irritant substances when opening the This machine is not a toy! To avoid the...
  • Page 7 Only use chemical agents regulations on the control of epidemics, formulated for special processes and the steam condenser and its approved by Miele for use with this connections to and from the wash machine. Use of unsuitable agents cabinet must be cleaned and...
  • Page 8 Miele Otherwise, the water softener may Application Technology specialists. become damaged. If cleaning and rinsing results are...
  • Page 9: Symbols On The Machine

    Miele accessories, can result in ensure the machine is completely unsatisfactory cleaning and disinfecting drained of any residual water, chemical results, for which Miele cannot be held residues and cleaning agent. Observe liable. Any resultant damage would also safety regulations and wear safety invalidate the machine guarantee.
  • Page 10: Description Of The Machine

    Description of the machine This washer-disinfector can be used to Processing medical and laboratory clean, rinse, disinfect (thermally and instruments by machine achieves chemo-thermally) and dry a wide range reproducible results, and should be of reusable medical and laboratory used in preference to processing them products.
  • Page 11 Description of the machine 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 vario TD programme.
  • Page 12: Guide To The Machine

    Guide to the machine a On/Off switch I-0 h Check/Fault indicators: p / 6 Inlet/drain b Door release a Add salt c Display Add neutralising agent Add rinsing agent d ß button to switch between the 8 DOS Optical interface for displays for: service technician;...
  • Page 13 Guide to the machine a Connection for DOS module K 60 at f Rinsing agent reservoir (with dosage the rear of the machine selector) b Service panel g Rinsing agent level indicator c Filter combination At the rear of the machine: d Salt reservoir –...
  • 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 The transport and protective packing which, if handled or disposed of has been selected from materials which incorrectly, could be potentially are environmentally friendly for disposal hazardous to human health and to the and can normally be recycled.
  • Page 15: Opening And Closing The Door

    PRE-RINSE D and DRAIN 6 programmes. The machine can be programmed (by a ^ The emergency release cord is Miele approved service technician) to located at the bottom of the machine open during "Drying". behind the service panel. Pull it downwards to open the door.
  • 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 off the machine. results in the build-up of calcium deposits on instruments etc. and in the ^ Turn the programme selector to f.
  • Page 17 Water softener Table of settings °d mmol/l °f Setting °d 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

    These may contain insoluble additives which can impair the functioning of the water softener. If in doubt consult the Miele Professional Department. The salt reservoir holds approx. 2.5 kg of salt.
  • Page 19: Add Salt Indicator

    Water softener Add salt indicator Reactivation takes place automatically during a programme. The programme sequence indicator light a k lights up whilst this is happening. ^ Add salt when the Add salt b k indicator lights up.
  • 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: Loading The Machine

    Areas of application Loading the machine Preparing the load ^ Empty all containers before loading – Arrange the load so that water can access all surfaces. This ensures into the machine (paying particular that they get properly cleaned. attention to regulations regarding 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 when a basket or injector unit is Different height items can be 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: Dispensing Chemical Agents

    The dispensing of rinsing agent in the final programme programme via DOS 2 has to be activated by a Miele service technician. 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 26: 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 H lights up. It is set to 3 (3 ml) at the factory.
  • Page 27: Adding Neutralising Agent

    Dispensing chemical agents Adding neutralising agent ^ Place the red container with neutralising agent on the floor next to Neutralising agent (pH-level: acidic) the machine or in an adjoining neutralises residues of alkaline cleaning cupboard. agents on the surface of instruments and utensils.
  • Page 28: 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 w lights up. Please remember to refill the container in good time. Do not let it get empty.
  • Page 29: Adding Cleaning Agent

    K 60 (DOS 1, dispensing pump for – O 175/1 liquid cleaning agent). The machine – O 176/1 must be set up for this by a Miele – O 183 approved service technician. The DOS – O 184 module is connected externally.
  • Page 30 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 31: Switching On

    Operation Selecting the additional Drying 0 Switching on function ^ Close the door. The additional Drying function may be ^ Open the stopcocks. selected immediately after the programme has been selected (except ^ Press the I-0 switch. with Pre-rinse programme D). When the programme selector is at f, To do this: a dot lights up in the display.
  • Page 32: 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 33: At The End Of A Programme

    Operation At the end of a programme Switching off The programme has ended when r ^ Press and release the I-0 switch. lights up constantly in the programme sequence display and the 6 indicator As the machine is fitted with an electric door lock, the door can only has gone out.
  • Page 34: To Cancel A Programme

    Operation To cancel a programme ^ Turn the programme selector to f. Once a programme is running, it should The programme will be cancelled after only be cancelled in extreme cases, approx. 2 seconds. e.g. when articles in the machine rattle ^ Open the door a.
  • Page 35: Programmable Functions

    Programmable functions For future sevicing 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 36: 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 37: 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 0 until E02 appears. ^ Turn the programme selector to F.
  • Page 38: 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 39: 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 40: Changing The Temperature

    Programmable functions Changing the temperature Step Display / Result ^ Press button 0 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 41: Resetting To Factory Default Settings

    Programmable functions Resetting to factory default settings Step Display / Result ^ Press 0 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: ^ Press ß...
  • Page 42: 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 43: 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 0 as often as necessary or hold it pressed in until E04 appears in the display.
  • Page 44: Data Transfer (Optional)

    In accordance with IEC 60950 only – Programme end use an industry-standard printer (e.g. in Germany TÜV, or VDE – Fault indications, e.g. insufficient salt approved). The printer must be installed and set up by a Miele approved service technician.
  • Page 45: Maintenance

    The following operational tests will be carried out within the framework of the This washer-disinfector should be maintenance: serviced by a Miele approved service technician in accordance with local and – A programme will be run as a test national safety regulations after every 1000 operating hours, or annually.
  • Page 46: 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 47: 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 48: 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 49: Cleaning The Spray Arms

    Maintenance Cleaning the spray arms ^ Unscrew the upper spray arm. ^ Loosen the knurled thumb nut to The spray arms can become blocked 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 50: Cleaning The Control Panel

    ^ To help prevent resoiling Dispensing systems (fingermarks etc.) a stainless steel conditioning agent (available from When processing chemicals are being the Miele Spare Parts Department or used, they should be monitored via the internet on regularly for any dispensing can also be irregularities.
  • Page 51: 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 52: Drying Unit (Ta) - Maintenance

    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 53: Problem Solving Guide

    ^ Switch the machine off with the I-0 switch. ^ Switch the machine on again and reselect the programme. ^ If the problem occurs again and cannot be remedied, please contact the Miele Customer Contact Centre. ^ Quote the fault code "F...".
  • Page 54 Problem solving guide Fault Possible cause Remedy The 8 DOS indicator Before trying to rectify the starts flashing before problem, you must: the start of a – Turn the programme programme. The selector to f (the fault programme cannot be code goes out).
  • Page 55 Problem solving guide Fault Possible cause Remedy The w indicator starts Before trying to rectify the flashing before the problem, you must: start of a programme. – Turn the programme The programme cannot selector to f (the fault be started. code goes out).
  • Page 56 Problem solving guide Fault Possible cause Remedy The Add salt indicator The salt reservoir has not Fill carefully with salt. light k 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: the p / 6 indicator...
  • Page 57 Problem solving guide Fault Possible cause Remedy The programme is Before trying to rectify the cancelled and the problem, you must: p / 6 indicator – Turn the programme flashes. selector to f (the fault code goes out). – Switch the machine off with the I-0 switch.
  • Page 58 Problem solving guide Fault Possible cause Remedy Cleaning agent residue The dispenser for powder Make sure the dispenser is left in the dispenser cleaning agent was still is dry before adding for powder cleaning damp when it was filled. cleaning agent. agent at the end of a An item was blocking the Arrange the items so that...
  • Page 59 Problem solving guide Fault 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 60 Problem solving guide Fault 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 items. which is too low. and programme the water softener correctly.
  • Page 61 Problem solving guide Fault Possible cause Remedy The cleaning result is Baskets or inserts have Rearrange the items. unsatisfactory. been incorrectly loaded or Do not overload baskets or overloaded. inserts. The programme selected Select a suitable is not suitable for the programme or change the degree of soiling.
  • Page 62: 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 63: 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 64: 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.
  • Page 65: After Sales Service

    Service Dealer or the Miele Customer Contact Centre. See back cover for contact details. ^ When calling your Dealer or the Miele Customer Contact Centre, please quote the model and serial number of your machine, both of which are shown on the data plate (see "Electrical connection").
  • Page 66: 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 67 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 the Miele Customer worktop. Contact Centre. ^ Open the door. This cover plate protects the underside of the worktop against steam rising from the machine.
  • Page 68: Electrical Connection

    3 mm in the mains connection switch. Bonding connection – The mains connection cable may only be replaced by an original Miele There is a screw connection point spare part or an appropriate cable marked with the earth symbol ( ) at with wire end ferrules.
  • Page 69: Plumbing

    (WRC in the fault code F E will appear in the U.K.). display) please contact the Miele Customer Contact Centre for advice. – If the iron content in the water is too high, there is a risk of corrosion –...
  • Page 70: Ad Water Connection (Pressurised) Ü 0.6-10 Bar (60-1000 Kpa) Over Pressure

    AD stopcock for purified 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. The inlet hoses must not be shortened or damaged in any way (see illustration).
  • Page 71: 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 72: Programme Chart

    A/B range, in accordance with § 18 IfSG. 93°C-10’ CW = Cold water, HW = Hot water, AD = Aqua destillata, °C = Temperature, + min = Holding time * The dispensing of rinsing agent with DOS 2 must be activated by a Miele service technician...
  • Page 73 Programme chart Programme sequence Pre-wash Main wash Rinse Rinse Final rinses* Drying 99°C 70°C DOS 1 DOS 3 25 min 5 min 80°C 75°C 3 min 1 min 99°C 70°C DOS 3 DOS 1 DOS 3 25 min 5 min 50°C 75°C 70°C...
  • Page 74: 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 76 Alteration rights reserved / 3607 M.-Nr. 07 125 650 / 00...