Spapool

If you're receiving the 'HL' error code on your Aqua Spa Deluxe and the temperature is showing as 40C or higher, it's an indication that the hot tub is overheating. Here are some potential solutions: Check the water temperature: The first thing to do is to check the actual water temperature in the hot tub. Use a thermometer to check the temperature and compare it to the temperature displayed on the control panel. If the water temperature is indeed too high, turn off the hot tub immediately and let it cool down. Check the water flow: Make sure there's adequate water flow through the hot tub. Check the water level and make sure the jets are operating normally. Low water flow can cause the heater to overheat, triggering the 'HL' error code. Check the filter: Make sure the filter is clean and not clogged. A dirty or clogged filter can cause low water flow, leading to overheating and the 'HL' error code. Check the thermostat sensor: If the thermostat sensor is faulty, it can cause the hot tub to overheat. You mentioned that you've ordered a new sensor, so once it arrives, you can replace the old sensor and see if that resolves the issue. It's important to address the 'HL' error code as soon as possible to prevent damage to your hot tub's components and ensure safe operation.