Why does the thermal overload protection trigger or the fuses trip on my Xylem LOWARA e-SV Water Pump?
- Llee93Nov 24, 2025
If the thermal overload protection triggers or the fuses trip in your Xylem Water Pump, it could be due to several reasons. The overload protection might be calibrated too low for the motor's rated current, requiring recalibration. A missing power supply phase could also be the cause, so check and restore the phase. Loose or faulty connections of the thermal overload protection can cause this issue; tighten or replace the clamps and terminals. Similarly, loose, incorrect, or faulty connections in the motor's terminal board could be the problem; tighten or replace those clamps and terminals as well. Other potential causes include a faulty motor coil (check, repair, or replace the motor), a mechanically seized pump unit (check and repair the pump unit), or a faulty check valve or foot check ...









