Specifications

9 UD - Operator Manual 141216
Fault Cause Remedy
Filling
Not filling Water supply valve shut Check Water supply valve
Door Switch not operating Check Door is closed
Filling during wash cycle Upstand not fitted properly Check Drain upstand is fitted
Heating
Dishes not hot enough Rinsing but not hot Check water arms spinning freely
Cycle start
Does not start Door switch Check door is closed
Cycle Finish
Wash too long Water supply cold Check water temperature
Performance
Poor wash result Detergent not used Use quality low foam product
Overloading racks Do not overload racks
Not pre-rinsing Use Fisher pre-rinse
Wash arms not rotating Remove and clean arms/check
bushes
Wash jets blocked Remove arms and clean jets
Excessive soiling Pre-rinse/use long cycle
Unrealistic expectation E.g. baked on soiling requires
pre-soaking
Poor rinse results Rinse jets blocked Remove arms and clean jets
Rinse arms not turning Remove arms, clean jets, check
bushes
Poor racking procedures Do not overload racks
Wash tank soil build up Pre-rinse, change wash water
regularly
Not drying Poor wash/rinse performance Refer above
Low temperatures Check heating systems
Drying agent not used Use quality drying agent/rinse fluid
Foaming Wash Excessive Rinse Fluid Adjust Rinse Fluid
Troubleshooting