Fisher & Paykel DD603 User Manual page 27

Customers Complaint Dishes have blotchy marks on them that look
Cause of
problem
How to resolve
the problem
Customers Complaint Glasses & Cutlery have a Cloudy White film on
them and/or Plates have a White Chalky film on them
Cause of
problem
How to resolve
the problem
like water stain marks not food
Not enough rinse aid being used. The water is not soft
enough during the final rinse and therefore hard water
droplets containing impurities are drying on the dishes
instead of running off during the dry cycle.
Confirm that the customer is using rinse aid.
The rinse aid may need to be turned up to a higher
setting (4 or 5 lights) and for optimum dry performance
run the DishDrawer on normal or heavy cycles not Eco.
Check that the rinse aid dispenser is dispensing
correctly in diagnostics.
Hard water & not enough detergent being used.
Minerals from the water are building up on the dishes
or the Water Softener is not set to the correct Water
Hardness Level or is faulty.
Once this film forms on the dishes it cannot be
removed by normal running in the dishwasher. The
dishes will need to be cleaned by soaking them in an
acidic solution such as white vinegar and water.
Where a Water Softener is not fitted;
To prevent the build up re-occurring the customer will
need to fill both the main-wash & pre-wash detergent
cups to the top with a power detergent and we would
recommend running on normal cycles.
In problem areas with very hard water the customer
may need to use a detergent additive designed for use
in hard water areas or fit a water softener to the
incoming water supply.
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