Miele Dishwasher Care And Maintenance
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Miele Dishwasher Care And Maintenance

Miele Dishwasher Care And Maintenance

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Dishwasher Care and Maintenance
General
DTD no. 21-0000

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Summary of Contents for Miele Dishwasher

  • Page 1 Dishwasher Care and Maintenance General DTD no. 21-0000...

  • Page 2: Table Of Contents

    Technical Information Dishwasher Care and Maintenance General - Table of Content Notes ......................4 1.1 Dishwasher cleaning and care..............4 Cleaning agents.....................5 2.1 Detergent....................5 2.2 Rinse aid....................6 2.3 Ractivation salt ..................7 2.4 Combination products (2 in 1, 3 in 1) Function ........8 2.5 Machine care products ................10...

  • Page 3: Dishwasher Care And Maintenance General - Table Of Content

    Technical Information Dishwasher Care and Maintenance General - Table of Content (continued) 5.13 Residues in cabinet ................42 5.14 Wearing out of rubber parts ..............43 5.15 Powder detergent in dispenser clogged and not properly flushed out ...43 5.16 Dishes not properly dry................44...

  • Page 4: Notes

    Technical Information Notes Dishwasher cleaning and care General information 1. The filter combination must be emptied and cleaned regularly. 2. If wash results deteriorate noticeably, the spray arm jets should be checked and cleaned carefully to remove any soil that may have collected.

  • Page 5: Cleaning Agents

    5. Prevent corrosion. Chemical composition / Function of various components: 1. Alkalinity carrier (metasilicates): Dried-on food residues are swelled to ease removal, dishwasher load is protected against corrosion, alkalinity is provided. 2. Builder (phosphates): Binding of substances causing water hardness, removal of tea stains, dispersal of soil and food residues.

  • Page 6: Rinse Aid

    Technical Information Rinse aid Rinse aid is used to ensure that the load is dry, with a universal sheen and free of filming, streaking or stains at the end of the wash program. Depending on setting, between 2 and 6 ml rinse aid is used per wash. Rinse aid ensures optimal wetting of the load and at the same time leads to sheeting of the rinse water as it drains off.

  • Page 7: Ractivation Salt

    Technical Information Reactivation salt Some dishwashers are provided with a water softener, which must be filled regularly with reactivation salt to ensure efficient operation. For further information, see 4.5 Water softening and reactivation. Pure reactivation salt dissolves without residue. For this reason only special reactivation salt or pure evaporated salt may be used in the water softener.

  • Page 8: Combination Products (2 In 1, 3 In 1) Function

    The glass protector is automatically released during the wash cycle so no program modification is required. 4 in 1 tabs can be used in all Miele dishwashers with and without 3 in 1 function, without any adverse effects. Properties Under certain circumstances unsatisfactory cleaning or drying results can be due to the use of combination products.
  • Page 9 Technical Information If complaints are received concerning poor drying results when using combination products, these should be redirected to the detergent manufacturer. To achieve good cleaning and drying results, the following should be noted: 1. Combination detergent should only be used within the water hardness range given by the manufacturer! 2.

  • Page 10: Machine Care Products

    To achieve this result, the most powerful dishwashing program should be used. A machine care product can also be used to remove calcareous deposits from items in the dishwasher load and discoloration from stainless-steel surfaces as well as removing residues from around the door seal area.
  • Page 11 Technical Information Chemical composition / Function of various components: 1. Wetting agent (non-ionic tensides): To reduce the surface tension of the water. The load is thoroughly wetted and foam-free washing is ensured. 2. Solubilizer (alcohol, xylolsulphonate or cumolsulphonate): To ensure stability of the rinse aid by preventing the components separating out.

  • Page 12: Deodorant

    Technical Information 2.6 Deodorant If dirty dishes are left in the dishwasher for a long period, unpleasant odors can develop quickly. A special deodorant to counter this can be hung in the interior. Such deodorant is generally effective for about 50 wash cycles.

  • Page 13: Dishwasher Load

    Glass items of the most varying qualities are frequently washed together in the dishwasher so it is not surprising that varying levels of glass corrosion may become apparent at different times. Cheap glasses may show signs of...
  • Page 14 Usually it takes considerable time until signs of wear due to washing in a dishwasher appear. In particular scratches are everyday signs of wear and tear that sooner or later will appear on any glass washed regularly in a dishwasher.
  • Page 15 Technical Information Corrosion - General information: 1. Soft water leaches glass more severely than hard water. This is because as the water has a low concentration of hardening metal ions, these can be more easily removed from the surface of the glass. 2.
  • Page 16 • Glasses should be washed at low temperatures only (if possible with a special glassware program). Note Streaking in glass is not a sign of wear from cleaning in a dishwasher but rather indicates insufficient mixing of the melted glass during the production process.

  • Page 17: Silver

    Technical Information 3.3 Silver Properties: Silver has many outstanding properties which include excellent heat conduction as well as being highly reflective, ductile and chemically resistant. Its conductivity makes silver cutlery particularly popular with gourmets. This is because silver cutlery does not affect taste perception as the cutlery warms to the same temperature as the food being consumed.
  • Page 18 1. Residues of foodstuffs containing sulphur have a relatively long time to affect the surface of silverware as dishwashing programs are usually only started when the dishwasher is full. 2. The high cleaning temperatures increase the reactivity of the silver and help speed up the tarnishing process.

  • Page 19: Stainless Steel

    In such a case this discoloration is not due to tarnishing. 3.4 Stainless steel Nowadays a considerable proportion of a dishwasher load may be made of stainless steel, e.g. plates, platters, pots, pans, sieves, cutlery and ladles. Rust-free stainless steel refers to steel alloys with at least 12% chromium.
  • Page 20 Rusting steel: In addition to non-dishwasher-proof knives and damaged blades, the fixing screws on the handles of pots and pans may not be rust free and can be sources of rust.

  • Page 21: Aluminum, Tin, Copper And Brass

    Such discoloration can be easily removed with a machine cleaner or scouring agent. 3.5 Aluminum, tin, copper and brass These materials are not suitable for cleaning in a dishwasher as they have only limited chemical resistance. 3.6 Ceramics Depending on their structure, constituents and the purity of the raw materials used (clay, kaolin, felspar and quartz), ceramics can be divided into two groups fine and heavy.
  • Page 22 Technical Information The following types of fine ceramics are suitable to a very limited extent for cleaning in a dishwasher: 1. Fine stoneware (porcelain) Light grey to white, sintered (maximum 3% water absorption), hard and resistant. Note To differentiate between stoneware and fine stoneware, tap the item carefully.

  • Page 23: Porcelain

    2. Under-glaze decoration: With this version the colored decoration is protected against the effects of the suds by a layer of glaze. The majority of porcelain currently on the market with this type of finish is dishwasher- proof. 3. On-glaze decoration: Porcelain decorated in this manner has less resistance.

  • Page 24: Wood

    1. To prevent deformation, wash programs with low temperatures (< 122°F) should be selected. 2. If plastic items are washed in a dishwasher over a longer period, slight discoloration can occur. Discoloration can also be caused when plastics come into contact with strongly colored foodstuffs such as beets, carrots or tomatoes.

  • Page 25: Loading The Dishwasher

    One basic requirement for this, in addition to the selection of a suitable program appropriate to the level of soiling and type of load, is the correct loading of the dishwasher. Basic requirements: 1.
  • Page 26 8. As usually the dishwasher is not operated until it is full, keep the door closed to avoid food residues drying-on. Tips for unloading: 1.

  • Page 27: Wash Technology

    Technical Information 4.0 Wash technology 4.1 Basics Four factors influence the cleaning results of washing in a dishwasher. These can be presented in a pie chart known as the Cleaning Circle: 1. Mechanical action: Spray pressure of water. 2. Chemical action: Composition of detergent.

  • Page 28: Programs

    4.3 Summary of wash and drying phases The programs that can be selected with a dishwasher can be roughly divided into six different phases as follows: 1. Pre-wash: 5 – 10 min.

  • Page 29: Drying

    Drying is carried out by venting the cabinet in several stages. So long as water is in the dishwasher, the Turbothermic fan remains closed. When the drying phase first begins, the fan is half opened. This causes moist, hot air from the cabinet to be mixed with cold, dry air from the door cavity and then expelled from the machine.
  • Page 30 Technical Information 4. Recirculation turbothermic drying (from G 1xxx/G 2xxx on all model versions): Fig. 1 1 Inner fan channel 2 Outer fan channel 3 Fan Circulation Turbothermic drying (UTT) operates with two separate air paths: 1. Condensing circuit 2. Cooling circuit with ambient air...

  • Page 31: Water Softening And Reactivation

    4.5 Water softening and reactivation Calcareous deposits in the cabinet and on the load, stained glasses and generally poor cleaning results would be the result of using a dishwasher without softened water. Therefore, every modern dishwasher has a water softener with special amber-colored grains of artificial resin. This resin (if the softener is activated and regularly filled with reactivation salt) is loaded with sodium ions.
  • Page 32 (in this case a level that is too high), much too little incoming water will be mixed with the water softened in the dishwasher, which can lead to a water hardness level in the cabinet of less than 1 gr/gal.

  • Page 33: Fault Repair

    Technical Information 5.0 Fault Repair 5.1 Generally poor washing results Cause Incorrect dispensing. Remedy 11.1. Check the manufacturer's instructions regarding dispensing. Cause Incorrect program selection. Remedy 1. Select a program with longer running time (and higher temperature). Cause Machine overloaded. Remedy 1.
  • Page 34 Technical Information Cause Spray arms clogged. Remedy 1. Clean the spray arms with a suitable machine care product. Cause Filter combination clogged. Remedy 11.1 Remove the filter combination and clean it. Cause Dispenser unit defective. Remedy 11. Exchange the dispenser unit. Cause Spray arms defective.

  • Page 35: Grainy Or Sand-Like Residues

    Technical Information Cause Heating defective. Remedy 1. Exchange the heating. 5.2 Grainy or sand-like residues Grainy or sand-like deposits are food residues that have been cleaned from the load but have then been redeposited on items. Cause Dirty filter combination. Remedy 1.

  • Page 36: Dull Deposits

    5.3 Dull deposits Dull deposits are starch residues (from casseroles, potatoes, sauces, legumes, flour, etc.). Cause Insufficient detergent dispensed. Remedy 1. Increase the dispensed quantity. Cause Machine incorrectly loaded. Remedy 1. Load the dishwasher correctly, see also 3.10 Loading the dishwasher.

  • Page 37: Items Not Bright Or Shiny

    Excessive quantities of starchy food residues have been left on items. Remedy 1. Scrape off food residues more thoroughly before placing items in the dishwasher. 5.4 Items not bright or shiny A lack of brightness is usually the result of calcareous deposits or water stains and stripes.

  • Page 38: Lipstick Stains

    Wash temperature too low (< 122°F). Remedy 1. Select a dishwashing program to suit the level of soiling of the load. Note To remove grease residues, run an intensive program with increased detergent dispensing. Alternatively, clean the dishwasher with a suitable machine care product.
  • Page 39 Technical Information Cause Wash program too short. Remedy 1. Select a dishwashing program to suit the level of soiling of the load. Cause Insufficient detergent dispensed. Remedy 1. Increase the dispensed quantity. 5.9 Excess foam development Cause Operating fault. Remedy 1.

  • Page 40: Odor Development

    Technical Information 5.10 Odor development Cause Dishwasher installed incorrectly. The drain water hose has been connected to the on-site drain on the wrong side of the U-bend odor trap. Remedy 1. Check the drain connection and modify if necessary. Cause Drain hose is kinked or not laid in accordance with the operating instructions.

  • Page 41: Salt Residues

    Technical Information Cause Glass corrosion. If glasses smell musty, this may be a sign of glass corrosion. Remedy 1. As glass corrosion cannot be treated, the glasses must be disposed of. 5.11 Salt residues Cause The salt container is not correctly closed. Remedy 1.

  • Page 42: Calcareous Deposits In The Cabinet

    Technical Information 5.12 Calcareous deposits in the cabinet Cause No salt present. Remedy 1. Reactivate the water softener with reactivation salt. Cause Incorrect water hardness level set. Remedy 1. Set the water hardness correctly to suit the on-site water supply. Cause Fault in water inlet system.

  • Page 43: Wearing Out Of Rubber Parts

    Remedy 1. When loading the machine make sure that the dispenser flap will not be hindered and that it will be able to open correctly (see also 3.10 Loading the dishwasher). Cause Powder detergent has been stored incorrectly. Remedy...

  • Page 44: Dishes Not Properly Dry

    Technical Information 5.16 Dishes not properly dry Cause Rinse aid missing. Remedy 1. Fill the rinse aid container. Cause The Tab button has been pressed but standard detergent is being used. Remedy 1. Use a combination product or deactivate the Tab button and use standard detergent.

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