#6. Improper Operation
6-4. Not Clean – If Leaves Glasses with A Dim Finish
Symptom
ㆍLeaves Glasses with A Dim Finish
Causes
ㆍToo much detergent
ㆍChemical reaction
ㆍWater temperature
Check Point
Step 1 :
Detergent
Check if water supplied is soft and too much detergent was used.
Under load the dishwasher and use a rinse aid to minimize this.
This is called etching and is permanent. To prevent this from happening,
use less detergent if you have soft water. Wash glassware in the shortest cycle
that will get them clean.
that will get them clean.
Step 2 :
Silica Film or Etching
In case of Silica film or etching :
(silica film is a milky, rainbow-colored deposit; etching is a cloudy film)
- Sometimes there is a water/chemical reaction with certain types of glassware.
This is usually caused by some combination of soft or softened water,
alkaline washing solutions, insufficient rinsing, and overloading the dishwasher.
It might not be possible to prevent the problem, except by hand washing.
To slow this process use a minimum amount of detergent but not less than 1
tablespoon (15 g) per load. Use a liquid rinse aid and under load the dishwasher to allow
thorough rinsing. Silica film and etching are permanent and cannot be removed.
Step 3 :
Water Temperature
If water temperature entering the dishwasher exceeds 150° F,
this could be etching. Lower the water heater temperature.
water valve, water level sensor / hose , main PBA
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