Laswim EC Series Salt Chlorinator Showing E7: What Does It Mean?
Laswim EC Series Salt Chlorinator Showing E7: What Does It Mean?
The E7 code indicates a water temperature sensor fault. The sensor should be checked to find the cause before deciding to replace any parts.
Water Temperature Sensor Fault
Check the sensor to find the cause before deciding to replace any parts.
What Should You Do When You See This Code?
How Is E2 Different From E7?
Both codes relate to water temperature, but point to different causes.
So if E7 appears, check the sensor system first before concluding the water is too hot or too cold.
Switch off and disconnect power before any inspection or repair. Have a qualified technician do the work.
Frequently Asked Questions
What does the E7 code mean on a Laswim salt chlorinator?
E7 indicates a water temperature sensor fault. Check the sensor to find the cause before deciding to replace parts.
Does E7 mean the water is too hot or too cold?
Not necessarily. E7 means a sensor fault, while water temperature outside 1045°C is code E2. Check the sensor system first.
Does the sensor always need replacing?
Not always. The manual says to first check for anything stuck around the sensor, then consider replacement based on the result.
What if E2 appears together with E7?
Photograph the display and tell the technician both codes appeared. This helps when inspecting the water temperature measurement system.
Need Help With an Initial Diagnosis?
Send us a photo of the display, your unit model and any other codes shown.
