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Design and construction subject to change without prior notice!
No. Display text Note / possible cause Measures / remedial action
408
Change osmosis
system pre-filter
• Pre-filter is exhausted • Change pre-filter
410
Water supply os-
mosis module faulty
• No or insufficient water inlet wa-
ter supply
• Open water inlet valve
• Check pre-filter/sieve and clean
or replace (if applicable)
500
Energy optimization
active
• The energy optimisation was de-
manded externally
• Restricted availability of heating
capacity for machine
• Longer runtimes possible
• No action required
501
Energy optimization
active
Tank temperature
not reached
• Tank set temperature is not
reached
• Temperature probe defective
• Heating defective
• I/O circuit board is defective
• Possible to continue working
• Call a service technician!
502
Energy optimization
active
Tank wash time in-
crease insufficient
• Tank heating defective
• Boiler heating defective
• Supply valve defective
• Possible to continue working
• If the error message reoccurs,
call a service engineer
503
Energy optimisation
active
Temperature in-
crease not reached
• Tank set temperature/tempera-
ture increase is not reached
• Temperature probe defective
• Heating defective
• I/O circuit board is defective
• If the error message reoccurs,
call a service engineer
504
Energy optimization
active
Final rinse temper-
ature not reached
• Boiler set temperature is not
reached
• Temperature probe defective
• Heating defective
• I/O circuit board is defective
• Call a service technician!
505
Energy optimization
active
Wash time increase
final rinse insuffi-
cient
• Temperature probe defective
• Boiler heating defective
• Supply valve does not close
• If the error message reoccurs,
call a service engineer