Meiko TopClean M, Instructions For Use Manual, Page: 37 / 54

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9.7 Malfunctions
Despite careful construction, minor malfunctions may occur, which are usually easy
to fix. Possible errors and troubleshooting measures for the operator are described
in the following.
If the described operational problems occur repeatedly, the cause must be identified.
Common malfunctions
Malfunction Possible cause Remedy
Cleaning and disinfection
machine does not fill
No water present Open the shut-off valve
Dirt trap clogged Clean the dirt trap
Open door/hood Close door/hood
Final rinse does not spray
No water present Open the shut-off valve
Dirt trap clogged Clean the dirt trap
Streaks/smears on the
washware
Unsuitable rinse aid Change product
Incorrect dosing quantity Adjust dosing quantity
Water pre-treatment defective Check water pre-treatment
Strong formation of foam
in the wash tank
Dirt level too high
Prepare the washware more thor-
oughly/change tank water more frequently
Manual dishwashing detergent
used
Do not use a foaming manual dishwashing
detergent for precleaning or for cleaning the
machine. In the cleaning and disinfection
machine, foam can cause unit malfunctions
and a poor cleaning result.
Unsuitable detergent Change product
Unsuitable rinse aid Change product
As a rule, faults that are not described here require assistance from an authorised
service technician. Please contact your subsidiary or authorised dealer.
9.7.1 Messages
When a malfunction occurs, an information or error message (INFO/ERR) is dis-
played.
• Information messages
(INFO) can be acknowledged with the wash key. If the
cause has been remedied (see table), operation can be continued.
• Error messages
(ERR) usually require the deployment of an authorised service
technician!
INFO Description Possible cause Measures/remedial action
120
Emergency programme
active
• No boiler/tank heating
• No fresh water supply • Possible to continue work at limited capacity
• Call a service technician!
121 Door/hood not closed
• Door/hood open
• I/O circuit board defec-
tive
• Microswitch defective
• Microswitch not cor-
rectly set
• Close door/hood
• Call a service technician!