Technical data

ManualsBrandsMiele ManualsPrint & ScanG 7881

Problem Cause Solution

Spotting

(white residue)

Not using water softener

Water softener timer not set properly

Not reactivating water softener properly

Failure to remove gross debris prior to

processing

Determine the water hardness from local water authority.

Set the water softener to appropriate setting using the Operating Instructions handbook.

Replenish reactivation salt as soon as the light comes on according to the instructions in the

Operating Instructions handbook.

Rust (textured

brown deposits

on instruments)

Corrosion from carbon steel instruments

“Fly corrosion” Corrosion spreads from

carbon instruments to stainless steel

instruments

Chlorides in tap water

Do not process carbon steel instruments in the Miele dental washer disinfector.

Separate stainless & carbon instruments throughout the cleaning and sterilization process.

Treat instruments with neodisher

IR.

Have water tested for chlorides. It may be necessary to get an external water purification

system if chloride level exceeds 50 ppm.

Chloride-Induced

Pitting (points of

corrosion, with a

small hole in the

middle)

Chemical attack on instruments from

chlorides or other halide ions

Source for chlorides is often tap-water

or use of improper cleaning agents

Discoloration

(yellowish or

brownish tint on

instruments)

Silicates in the water

Treat instruments and the Miele dental washer disinfector wash chamber with

neodisher

IS.

Unsatisfactory

cleaning results

or white residues

Not using proper procedure:

Dirty instruments stored in machine

longer than 6 hours

Incorrect detergent dosage

Overloaded machine

Spray arm coupling not engaged

Detergent, neutralizer or rinse aid not

being dispensed

Failure to remove gross debris prior to

processing

Do not allow dirty instruments to sit for more than 6 hours.

Check the dosage of the detergent and adjust if necessary. Too little as well as too much

detergent may have adverse cleaning effects.

Place instruments into machine allowing water and detergent to touch every surface.

Do not overload. Make sure the spray arm can easily rotate and is not blocked by any devices.

There should be a tight fit between the coupling and the water inlet connector at the

top of the chamber. Follow directions in the Operating Instructions handbook.

Check dispensing, be sure rinse aid dispenser is filled

Remove gross debris

Name What It Does Directions for Use & Refilling Tips

neodisherTM MA

Alkaline detergent in powder

form

Facilitates cleaning process

Too much as well as too little detergent may have

adverse cleaning effects.

neodisherTM FA

Alkaline detergent in liquid

form

Facilitates cleaning process

Note: Requires optional

automated liquid dispensing

unit

Detergent is automatically dispensed when used in

conjunction with optional liquid dispensing unit.

Refill when indicator light comes on.

Indicator light comes on before detergent container

is completely empty.

If detergent container becomes completely empty

and air fills the pick-up tubes, it will be necessary to

prime the pumps.

neodisherTM N

Neutralizing agent

Restores pH balance to

prevent instrument corrosion

and prolongs machine life

Neutralizing agent will be automatically dispensed

at proper time during wash cycle.

Refill when indicator light comes on.

Indicator light comes on before neutralizer

container is completely empty.

If neutralizing agent container becomes completely

empty and air fills the pick-up tubes, it will be

necessary to prime the pumps.

Mielclear

Rinse Aid

Protects instruments against

corrosion

Breaks down surface

tension for faster drying

results

Mielclear will be automatically dispensed at proper

time during wash cycle.

Unscrew the cap in the door to refill when level

indicator turns light.

Pour Mielclear into storage container in the door

until level indicator darkens.

Make sure that any spillage is wiped off the door

after refilling or run the Rinse cycle immediately

after refilling.

Somat Salt

Reactivation Salt

Activates resin used to

soften water; prevents

instrument corrosion

Set machine according to local water hardness.

When Recharge indicator light turns on, refill with

Reactivation Salt. See Operating Instructions for

further instructions.

Run the Rinse Cycle immediately after refilling

water softener to be sure all salt is dissolved.

Consumption of salt is dependent upon local water

hardness.

CLEANING AGENTS

TROUBLESHOOTING GUIDE

QUESTIONS? Call 1-800-991-9380 or email:



dental@mieleusa.com

Detergent must be manually added to machine

before every wash cycle.

Pour about 3/4 scoop of powder into the dispenser

on the door before each cycle.

The door of the dispenser should not be blocked

by trays or other devices.

Have water tested for chlorides. It may be necessary to get an external water purification

system if chloride level exceeds 50 ppm.

Use only Miele approved cleaning solutions.

Remove corrosion with neodisher

IR or it may be necessary to replace instruments.