Meiko UPster K, Operating Instructions Manual

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13.1 Self-help in the event of malfunctions
Malfunction: Remedy
Machine not filling * No water present
* Dirt trap clogged
* Level system dirty
* Solenoid valve defective
* Main switch turned off
Final rinse not
spraying * No water present
* Dirt trap clogged
* Solenoid valve defective
* If the machine has automatic water conservation, the conservation grid
switch/timing switch is defective
* Air gap pump not functioning
* Limescale in final rinse system
Vapour escaping
* Curtains missing
* Temperatures too high
* Poor room air flow/draught through open door
* Wash arms, drying nozzles, air guide plates bent or not fitted correctly
Poor cleaning result * Washing temperature too low
* Detergent dosing quantity too low
* Wrong detergent
* Washware not placed correctly in rack
* Clogged nozzles
* Conveyor speed too high
* Dirt has dried onto washware due to standing for too long
* Washware not suitable for machine warewashing
Stripes and smears
on dishes * Mineral content of final rinse water too high
* If only found at certain times, check water softening unit with a view to regener-
ation.
* Water pre-treatment unit defective
* May also be different water, depending on the waterwork
* Unsuitable rinse agent or incorrect dosing quantity
* Incorrectly fitted or missing curtains
* Oversize containers previously washed. This causes detergent to be trans-
ferred to rear tanks
* Conveyor speed too high
* Washware not suitable for machine warewashing
Strong foam for-
mation in wash tank * Foaming hand dishwashing detergent enters wash tank on pre-cleaned parts
* Daily cleaning of the machine is carried out with foaming cleansing agents
which subsequently enter the machine.
* Improve pre-washing, as too much soiling is entering the tank. Alternatively,
empty wash tanks between uses.
* Final rinse water quantity too low
* Unsuitable detergent or rinse aid
* Temperatures too low < 40 °C
Poor drying result
with drying available
* Conveyor speed too high
* Wash tank temperatures too low
* Washware not suitable for machine warewashing
* Rinse aid product not adapted to washware material (porcelain/plastic). A com-
promise may have to be made here.
* Plastic washware (new washware)