Meiko UPster U 400 M2 Code INFO 720-722: Maintenance Necessary
INFO 720 to 722 on a Meiko UPster U 400 M2 means maintenance is necessary because the set operating hours or batch number have been reached. There is no operator action, and the message disappears after five minutes. Call us to schedule the maintenance visit.
Low: an operator reminder; the unit keeps running.
- Code
- INFO 720-722
- Maker
- MEIKO
- Equipment
- Dish machines
- Applies to
- UPster U 400 M2
What does MEIKO error code INFO 720-722 mean?
The UPster U 400 M2 counts how much it has been used, either in operating hours or in batches, and it compares that count with a service interval that was set for the machine. When the count reaches the setting, the control shows INFO 720 to 722 to remind staff that maintenance is due. It is a reminder only, and the manual says there is no operator action. The message disappears after five minutes by itself, and the machine keeps washing as normal. What the reminder is for is the service work behind it: checking the wash and rinse system, the heating, the seals and the sensors before wear turns into a stoppage. The manual also lists an annual error memory check among the reasons. Operators should keep up the daily cleaning in the owner's manual, note the date the message first appeared, and call to schedule the visit at a convenient time. Ignoring it does not damage the machine at once, but the interval exists so that wearing parts are inspected on time.
Affected models and control systems
This is for the Meiko UPster U 400 M2 glass and dishwasher. Other Meiko models and controllers use different service reminders.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- INFO 720, 721 or 722 on the display for about five minutes
- Message returning at the next start
- No change in washing
Possible causes
Listed in MEIKO's documentation
- Operating hours setting reached
- Batch number setting reached
- Service interval set for the machine
- Annual error memory check due
Other likely causes — what usually sits behind error code INFO 720-722 on this control. A technician confirms which one it is before any part is replaced.
- Service interval that was set at install and never reset after the last visit
- A busy season that used up the batch count faster than expected
Safe checks before calling for service
- Do nothing at the machine. The message disappears after five minutes, as the maker says.
- Note the date it first appeared.
- Keep up the daily cleaning in the owner's manual.
- Call us to schedule the maintenance visit.
How a technician diagnoses error code INFO 720-722
- Read the INFO number and the hours or batch count.
- Review the service interval setting.
- Inspect the wash and rinse system, nozzles and seals.
- Check the heating and temperature readings.
- Review the error memory.
- Reset the interval counter after the service.
- The service work includes testing heating and pumps on live 208-240 V circuits.
- Resetting the service counter is a setting in the machine's service menu.
- Reading the error memory takes the maker's service tool.
How error code INFO 720-722 differs from similar codes
720 to 722 are reminders, unlike the ERR codes that stop the machine.
Technical reference
- Document
- UPster U 400 M2 Original operating instructions 9760441 (update 2026-06), 9.6.1 Messages p.33-35
- Edition
- 9760441 / Valid from: 2018-02 / Update: 2026-06
- Models / control
- UPster U 400 M2
- Section
- 9.6.1 Messages: INFO table printed p. 33, ERR table pp. 34-35 (of 50)
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related MEIKO dish machine error codes
Do I have to stop using the machine?
No. It keeps washing and the message goes away after five minutes.
How urgent is the visit?
Schedule it soon, as the reminder exists to catch wear before it causes a stop.
Will the message come back?
Yes, until the service counter is reset after maintenance.
Need help with MEIKO error code INFO 720-722?
A technician confirms the cause on site and gives you the price in writing before any work starts.