CONDITION
CAUSE
SOLUTION
Final rinse water
Incoming water temperature .................
Raise incoming temperature to:
temperature is low
at machine too low
140
°
F/60
°
C for UH-200B, UH-100B
40
°
F/22
°
C rise boosters
110
°
F/43
°
C for UH-200B, UH-100B
70
°
F/39
°
C rise boosters
180
°
F/82
°
C for UH-200, UH-100
140
°
F/60
°
C for UL-100 and (Drain
and refill water for UL-100)
Defective rinse temperature .................
Check error codes, Section 5.3 and
thermistor (All Models)
5.4 and contact service agent
Defective booster temperature thermistor
Check error codes, Section 5.3 and
(UH-200B, UH-100B Only)
5.4 and contact service agent
Defective or tripped high limit .............
Contact service agent
on booster (UH-200B, UH-100B Only)
Defective booster tank heater ...............
Contact service agent
(UH-200B, UH100B Only)
Poor washing results
Low water .............................................
See "Low or no water condition"
Wash arm clogged ................................
Clean
Chemical dispensers .............................
Check and replenish supplies/
not operating properly
Contact service agent
Insufficient detergents ...........................
Contact detergent supplier
Crystal specs on dishes .........................
Wrong type of detergent
Wash water milky white color ..............
Too much detergent injected
Spots on glasses ....................................
May require rinse aid dispenser
Wash water temperature too low ..........
See condition “Wash water
Temperature is low”
Improperly scraped dishes ....................
See Section 3.3, page 30
Ware improperly placed in rack ............
Use proper racks. Do not
overload racks
Scrap screens full of debris ...................
Clean screens
Wash water not drained completely ......
Check drain hose (rear of machine)
for kinks. Make sure hose has
smooth bends
Machine won't drain
Drain hose (rear of machine) kinked ....
Make sure hose has smooth bends
and/or overflows
Drain pump/drain valve clogged ...........
Contact service agent
Water level control defective ................
Contact service agent
(UH-200B, UH-200 Only)
Fill Setting incorrect .............................
Contact service agent
(UH-100B, UH-100, UL-100 Only)
POWER LOSS when machine ON, ......
Turn off water supply.
machine refilled when POWER button
Push POWER button ON.
was pushed after power loss.
Push POWER button OFF to
begin auto-shutdown cycle.
When machine shuts off,
Turn water supply on.
Push POWER button to refill.
PART 5: OPERATOR TROUBLESHOOTING
(Cont.)
5.5 Troubleshooting Guide (Cont.)
Part 5:
OPERATOR TROUBLESHOOTING
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