Aluminium Cooking Utensils; Rusting Inside The Machine; Internal White Plastic Parts Of The Machine Turning Orange Or Pink; Black Marks On China - Hotpoint FDYF11011K Service Information

Indesit Company
2. Nickel Silver (German Silver) is an alloy of copper, nickel and zinc, and when subjected to heat in
dishwashing solutions the metal acquires a yellow colour. Maintaining this alloy in attractive condition
requires frequent polishing and it should not be washed in a dishwasher.
3. Pits and rust marks on stainless steel cutlery can usually be attributed to inferior quality stainless
steel or the finished article not being highly polished during manufacture.
Certain food soils have a damaging effect on the protective coating of stainless steel, particularly
foods containing vinegar, fruit and ordinary table salt.
It should be noted that stainless steel should not be left in the humid atmosphere of the dishwasher
for too long after the end of the programme, since this denies the protective coating the healing effect
of oxygen.
4. Bronze or bronze plated cutlery is subject to rapid tarnishing and should not be washed in the
dishwasher.
J. ALUMINIUM COOKING UTENSILS
Bright aluminium utensils may discolour or tarnish due to alkaline attack caused by certain minerals
in the water. Removing these utensils before the final heated rinse should prevent further problems.
Certain coloured aluminium utensils may discolour and should be washed manually.
K. RUSTING INSIDE THE MACHINE
Normally caused by migration of rust from non-stainless steel slivers alien to the machine or from
external non-stainless steel nuts used for fixing heater clamps. General surface rusting may occur
along the seams of the tub and can usually be removed by using a proprietary cleaner like Solvol
Autosol or 3-in-1 Chrome Cleaner.
L. INTERNAL WHITE PLASTIC PARTS OF THE MACHINE TURNING ORANGE OR PINK
Dark red coloured earthenware can sometimes produce this effect by migration of the colouring.
More common, is dishware being loaded with large amounts of tomato ketchup / juice present or the
precipitation of the iron content in the water causing staining because of insufficient detergent and/or
rinse aid dosage. The staining is not harmful but cannot be removed.
M. RAINBOW COLOURING ON STAINLESS STEEL INTERIOR AND COOKING UTENSILS
Usually caused by consistent underdosing of detergent, particularly if liquid detergent is being used.
N. BLACK MARKS ON CHINA
Usually caused by metal marks from spoons and knives. It can normally be removed by soaking the
china in a mild bleach solution and washing or by gently rubbing with metal polish, wiping dry then
washing.
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