MEIKO Commercial Dishwasher Error Code ERR 111: Floor Pan Leakage
ERR 111 on the UPster U 400 M2 display reads Floor pan leakage, meaning water has leaked into the floor pan. The manual says it is not possible to continue working and to call a service technician.
High: the machine stops and will not run until the leak is repaired.
- Code
- ERR 111
- Maker
- MEIKO
- Equipment
- Dish machines
- Applies to
- Meiko UPster U 400 M2 glass and dishwasher, M001DWUC10M2-10
What does MEIKO error code ERR 111 mean?
The UPster U 400 M2 has a floor pan under the machine that collects any water that escapes from the tank, hoses or fittings. A sensor in that pan watches for water. If it finds some, the control stops and shows ERR 111, Floor pan leakage, because water in the pan means a leak is present somewhere in the machine. The manual gives the cause as a leak and states that it is not possible to continue working, so the machine is locked out until it is repaired. It does not say where the leak is, and it does not list individual causes. Hoses, seals, the pump and the tank connections are all places a leak could start, but that is our reading and not the manual's. The display reads Floor pan leakage with ERR 111.
Affected models and control systems
This code is listed for the Meiko UPster U 400 M2 glass and dishwasher, type M001DWUC10M2-10, in section 9.6.1 Messages (the ERR table on printed pp. 34-35).
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
- ERR 111 with the text Floor pan leakage
- Machine stopped and will not start another cycle
- Water visible under or around the machine
Possible causes
Likely causes — what usually sits behind error code ERR 111 on this control. A technician confirms which one it is before any part is replaced.
- Water has leaked into the floor pan, so a leak exists somewhere in the machine
- A worn door seal or tank gasket letting water escape
- A loose or cracked hose clamp on an inlet, drain or rinse line
- A leaking pump seal or fitting inside the machine
- Overfilling after a failed level control, with the extra water reaching the pan
Safe checks before calling for service
- Switch the machine off at its switch and do not try to run another cycle.
- Look under and around the machine for water on the floor and wipe up any puddles so nobody slips.
- Check that the drain hose outside the machine is not leaking or disconnected.
- Note whether water is dripping, where it appears and when the message first showed, for the service call.
How a technician diagnoses error code ERR 111
- Isolate power and water supply to the machine.
- Open the panels and inspect the floor pan, tracing water back to its source.
- Test hoses, clamps, seals and the pump for leaks under pressure.
- Check the level control in case overfilling caused the water.
- Dry the pan, repair the leak, then run a test cycle and confirm the pan sensor stays dry.
- Opening panels on a machine with water on the floor combines wet conditions with live 208-240 V wiring.
- Finding the leak means testing the pump and fittings under pressure and with hot water.
- Floor pan sensor and level checks need the machine's own service tools.
Technical reference
- Document
- UPster U 400 M2 Glass- and dishwasher - Original operating instructions (type M001DWUC10M2-10)
- Edition
- 9760441 / Valid from: 2018-02 / Update: 2026-06
- Models / control
- Meiko UPster U 400 M2 glass and dishwasher, M001DWUC10M2-10
- 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
Can I keep washing with ERR 111?
No. The manual says it is not possible to continue working. The machine stays stopped until a technician repairs the leak.
Will drying the floor pan clear ERR 111?
The sensor may reset when dry, but the leak that caused it will still be there, so find the source first.
Is ERR 111 the same as a drain problem?
No. It reports water in the floor pan, which means a leak. A drain problem would be a different message.
Need help with MEIKO error code ERR 111?
A technician confirms the cause on site and gives you the price in writing before any work starts.