Backwash โหมดการล้างย้อน เพื่อล้างหน้าทรายให้สะอาดอยู่เสมอทำงานอย่างไร? การไหลของน้ำเป็นอย่างไร? สูบน้ำจากไหน? คลิปนี้มีคำตอบ

If your Laswim EC Series salt chlorinator displays E2, the water temperature is above or below the normal operating range of 10–45°C. This guide walks through the checks in order, from measuring the actual water temperature and watching for E7, to when a technician should check the temperature measurement system, and why adding salt won't fix it.

If your Laswim EC Series salt chlorinator displays the E6 code, it indicates a fault in the controller's internal temperature sensor. Have a technician check the sensor before replacing any parts. This guide explains the manual's inspection steps, what to tell the technician if E1 appears at the same time, and how E6 differs from E7.

Learn the causes of cloudy pool water and how to restore crystal-clear water using proper water balance, shock chlorination, and pool flocculant.