Poor Wash Performance - Fisher & Paykel DishDrawer DD247 Service Manual

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6.3 Poor Wash Performance

Customers Complaint - food particles left on dishes
Cause of problem (1).
How to resolve the
problem
Cause of problem (2).
How to resolve the
problem.
Cause of problem (3).
How to resolve the
problem
Cause of problem (1).
How to resolve the
problem.
Cause of problem (2).
How to resolve the
problem
Customers Complaint - dishes have blotchy marks on them that look like water stain marks,
Cause of problem.
How to resolve the
problem.
Spray arm has stopped rotating
a) One of the dishes / cutlery / utensils has fallen through the basket
and jammed the spray arm. Remove the obstruction.
b) The filter plate, drain filter, or drain filter access panel is not
installed correctly and is causing the spray arm to jam.
The product is being over loaded or incorrectly loaded with dishes.
Advise customer of correct loading.
The customer is selecting the wrong wash cycle for the soil level on the
dishes.
Advise the customer about reduced water temperatures (up to 20ºC /
70ºF lower) and wash times when using Fast and Eco cycles.
Customers Complaint - coffee/tea stains left in cups
Not enough detergent is being used. To remove these stains requires a
stronger concentration of detergent in the water.
More detergent is also required in hard water areas, as minerals in the
hard water reduce the effectiveness of the detergent. There are also
detergents available with a built in water softening agent which will
work up to moderate hardness levels.
Fill the main-wash detergent cup to the top and for best results also fill
the pre-wash detergent cup. Run on normal or heavy cycles, not Eco.
Use a detergent with a water softening agent.
The product is being over loaded, which is preventing water reaching
the cups on the upper cup racks.
Advise the customer of correct loading.
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.
not food