E18
DAB
Speed Limit / Torque Limit Exceeded
Pump shows E18 and cannot reach the set speed, running slower than expected
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Excessive system head (too much resistance), Partially blocked impeller, Incorrect speed or torque settings in installer menu, Weak motor due to winding damage
How to Fix / Troubleshooting
Safety first: Turn off power and close valves before opening the pump.
Steps to check:
- Inspect impeller and volute: Remove the pump wet end and clean any scale, debris, or buildup from the impeller and housing.
- Check system design: Ensure valves are fully open and that the plumbing size is appropriate for the selected speed.
- Adjust settings: In the DAB installer menu, verify that maximum speed and torque limits are correctly set for your model.
- Test at lower speed: Run the pump at a moderate speed and see if E18 clears. If the motor still struggles, internal damage may be present.
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Repair Difficulty
Hard
4/5
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