E15
DAB
External Safety Interlock Open
Pump shows E15 and stops when connected to an external flow or pressure switch
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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
Open external flow switch, Tripped pressure switch, Broken wiring to safety interlock terminals, Misconfigured safety input in DAB settings
How to Fix / Troubleshooting
Safety first: Ensure the system is depressurized and power is off before working on external switches.
Steps to check:
- Verify external devices: Locate any flow or pressure switches wired to the DAB pump. Confirm they are not tripped and are mechanically sound.
- Check wiring: Inspect the low‑voltage wiring from the switches to the DAB safety input terminals for breaks or loose connections.
- Bypass test (temporary): For testing only, and if safe, temporarily bridge the safety input terminals to see if E15 clears. If it does, the external device is faulty and must be replaced.
- Check configuration: Ensure the DAB control is configured correctly for the type of safety device installed (normally open vs normally closed).
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Repair Difficulty
Medium
3/5
Required Part
External flow/pressure switch circuit
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