Wascomat Washer Error Code 53: CPU/DLCU High Levels
Code 53 means that at program start or end, the DLCU mechanical level monitor was not switched off as it should be, indicating water may remain in the machine. A technician should check the level controller, its cables and the hoses.
High: the level monitor reports possible water in the drum, so the cycle stops.
What does Wascomat error code 53 mean?
At the start or end of a program, the drum should be empty, so the DLCU's mechanical level monitor should be off. If it is still on, the control shows ERROR 053 / CPU/DLCU HIGH LEVELS, since it suggests water may still be in the machine. The manual lists three causes: a damaged level controller, an open circuit in the level controller cables, and blocked air hoses in the level system. The steps are to check level controller function (on at 40 mm Wg, off at 15 mm Wg), check the cables and level hoses, and blow clean all hoses. It mirrors code 28, which covers the low-level disagreement. Here the monitor believes the level is high while the empty-drum state is expected. First look through the door to see whether water really remains.
Affected models and control systems
Wascomat washer-extractors W465H-W4300H, W475S-W4330S and W475N-W4330N with the Compass Control, CPU board and DLCU.
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
- ERROR 053 / CPU/DLCU HIGH LEVELS appears at start or end of a program
- Water may remain in the drum
- The washer will not begin or finish a cycle
- The code returns on the next start
Possible causes
Listed in Wascomat's documentation
- Damaged level controller
- Open circuit in level controller cables
- Blocked air hoses in the level system
Other likely causes — what usually sits behind error code 53 on this control. A technician confirms which one it is before any part is replaced.
- A drain that is slow so water really remains at program end
- A hose pinched when the machine was moved, trapping pressure
Safe checks before calling for service
- Look through the door and see whether water remains in the drum.
- If it does, check the floor drain for a blockage.
- Switch the machine off and on and start again.
- Note whether the code appears at start or end, and call us if it returns.
How a technician diagnoses error code 53
- Read the code and confirm it is 053.
- Confirm whether the drum is truly empty.
- Check the level controller switch points (40 mm and 15 mm Wg).
- Check the level controller cables for an open circuit.
- Blow clean all air hoses.
- Replace the controller or cable if it fails.
- Switch points need a pressure source and a meter.
- Hoses and cables run inside the cabinet near mains parts.
- Telling real water from a false reading needs the drum and drain checked.
How error code 53 differs from similar codes
Code 53 is the high-level disagreement and code 28 is the low-level one.
Technical reference
- Document
- Service manual, Washer extractors W465H-W4300H, W475S-W4330S, W475N-W4330N, Type W3..., Compass Control
- Maker documentation
- Wascomat owner support
- Edition
- 438 9228-61/EN, 2011.08.25
- Models / control
- W465H-W4300H, W475S-W4330S, W475N-W4330N (Compass Control)
- Section
- Troubleshooting, Description of error codes and causes (manual pp. 108-138)
- 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 Wascomat washer error codes
Is there really water in the machine?
Maybe. Look through the door first.
Is it the same as code 28?
No. Code 28 is the low-level disagreement.
Could blocked hoses cause it?
Yes, the manual lists blocked air hoses.
Need help with Wascomat error code 53?
A technician confirms the cause on site and gives you the price in writing before any work starts.