Miele G 2420 G 2430 operating instructions Drainage, Venting the drainage system

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Plumbing

Drainage

The machine comes equipped with a built-in non-return valve on the discharge side to prevent waste water from flowing back into the dishwasher.

The dishwasher is equipped with a

5 ft (1.5 m) flexible drain hose with an internal diameter of 7/8" (22 mm).

Drain hose extensions and adapters can be ordered from Miele.

The maximum drain hose length is 13 ft. (4 m), max. drain height: 39" (1 m).

If the hose is to be directly fitted to the drainage outlet on site, use the supplied hose clip.

The hose can be installed to the left or right side.

The existing drain pipe for the drain hose is designed for various hose diameters. The drain pipe must be shortened if the drain pipe extends too far into the drain hose. The drain hose could get clogged.

The drain hose must not be shortened.

Make sure the hose is installed without kinking, pressure or being pulled.

Venting the drainage system

If the dishwasher drain hose is connected to a floor drain or to a drain pipe that is less than 8" (20 cm) above the floor, the drain must be vented. Otherwise the water inside the dishwasher may siphon out during the wash program.

^Open the dishwasher door and remove the lower basket.

^Pull the lower spray arm firmly upwards to remove.

^Cut off the vent cap located at the right rear of the triple filter system, as illustrated.

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Contents Operating instructions Optima Series 2420 2430 Contents Contents Electrical Safety Important Safety InstructionsInstallation Disposal of an appliance UseGuide to the dishwasher Control panel Energy saving washing Caring for the environmentBefore using for the first time To open the door Child Safety LockTo close the door Checking the water hardness Water softenerFilling the salt container Salt indicator Adding rinse aid Rinse aidAdjusting the dosage Rinse aid indicatorLoading the dishwasher Items not recommended for dishwashing GlasswareSilver and aluminum Cutlery tray Spoon inserts for the cutlery basket Cutlery basketUpper basket Coffee barCup racks Removable spike insert Removing the insert aInserting the insert b Slide out the upper basket Adjusting the upper basketLower basket PlateGuard Plus with StemGuard Bottle holder Lower basket insertsFoldable Spike insert Removing an insert aInserting an insert b Basket accessories Detergent UseAdding detergent Turning on Selecting a programStarting a program Program When to use Program sequence Program guideUsage Program sequence indicator Glasscare indicatorTime display At the end of a programChanging a program Interrupting a programDetergent settings Additional functionsGel Delay start Delay start displayStarting a program before the delay start has elapsed Default setting Technical faults Frequently asked questionsProblems water intake/drain General problems with the dishwasher Sounds Poor cleaning results Are spotted Issue Possible fault Fix Dishes are not dryWhite residue is Visible on cutleryDiscolored Film cannot be wiped Off Glasses are dull Issue Possible fault Fix Glasses areDiscolored, film Cannot be wiped offPC Update After sales serviceRepairs MieleCareTransport User Maintenance Instructions Wash cabinet Cleaning and CareDoor and the door seal ExteriorTriple filter system Cleaning and Care Removing the spray arms Cleaning the spray armsCleaning the water inlet filter Installing an in-line water filterCleaning the filter Cleaning the drain pump and non-return valve Page Installation Instructions Help to protect the environment Disposal of the packing materialDisposal of an old machine Grounding Instructions Electrical connectionConnection to the water supply PlumbingVenting the drainage system DrainagePage Page Alterations reserved/1906