TROUBLESHOOTING GUIDE WARE
Symptom
Possible Causes
Dishes not clean.
1. Strainers clogged causing inadequate water supply to pump.
2. Obstruction in wash arm(s) or wash arms will not turn.
3. Wash and/or rinse arms will not turn – check that they spin freely.
4. Detergent pump inoperative.
5. Soil quantity – scrape dishes before cycle.
6. Improper rack loading.
7. Low water – check water supply.
8. Water temperature too low – note wash temperature on display during
WASH; should be above 120°F for chemical sanitizing machines and
above 150°F for high temperature machines.
Spotting of silverware, glasses, or
dishes.
1. Improperly loaded racks.
2. Water temperature too low.
3. Improper type or concentration of detergent – contact your chemical
representative.
4. Hard water – install a water softener; use a rinse agent.
5. Insufficient fill – check water supply.
Food soils remain in dishwasher.
1. Dishwasher not being cleaned thoroughly daily.
2. Strainer plugged.
Unexpected results on dishes.
1. Etching – usually caused by any combination of high temperatures, soft
water, soft glass, or high alkaline washing solutions.
2. Tarnishing – avoid washing silver, silver plates, and pewter in chemical
sanitizing machines.
3. Pitting – stainless steel may pit with lengthy contact of foods containing
salt, fruit juices, vinegar, etc. Wash immediately.
4. Black or gray marks – may have been rubbed with aluminum.
5. Brown stains – may be due to high iron content in water supply.
6. Chipping – improper loading or ware is too delicate.
7. Fading of china patterns – usually due to high water temperature and
strong detergent. Check that china is dishwasher compatible.
8. Wooden ware damage – avoid washing in dishwasher.
9. Rust on cast iron – seasoning is lost in dishwasher. Avoid washing in
dishwasher.
10. Plastic ware distortion – high temperatures. Check plastic ware
instructions.
SG, SU-L, SU-H DISHWASHERS - TROUBLESHOOTING
Page 55 of 59 F45577 (1215)
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