Wall-mounted boilers are common heating devices in households, providing a warm environment. However, sometimes these boilers may experience malfunctions. Here’s how to handle the E6 fault code on a wall-mounted boiler.
How to Handle the E6 Fault Code on a Wall-Mounted Boiler
1. Check the Sensor
When you notice the E6 fault code displayed on the boiler screen, the first thing you need to do is check the sensor. The sensor is a critical component of the boiler, monitoring the temperature of the heat exchanger and relaying data to the controller. If the sensor is faulty, it can cause the boiler to malfunction.
First, confirm that the sensor is properly connected. Check if the connections are loose or disconnected; if so, reconnect them. Then, use a multimeter to test the sensor’s resistance value to see if it falls within the normal range. If the resistance value is not normal, the sensor is damaged and needs to be replaced.
2. Clean the Heat Exchanger
If the sensor is functioning properly, the E6 fault code may be caused by an issue with the heat exchanger itself. The heat exchanger is a vital part of the boiler that transfers heat generated from burning gas to the heating system. If dust or dirt accumulates on the heat exchanger, it can affect its heat transfer capabilities, leading to a fault in the boiler.
Therefore, you should open the boiler and clean the heat exchanger. First, turn off the boiler's power and gas valve, then use a soft brush and vacuum cleaner to remove dust and dirt from the surface of the heat exchanger. Be cautious during this process to avoid damaging the surface of the heat exchanger.
3. Replace the Heat Exchanger
If the E6 fault code persists after cleaning the heat exchanger, it may be necessary to replace it. Over time and with the accumulation of dust and dirt, the heat exchanger can wear out and become damaged. Hence, if the E6 fault code remains unresolved through cleaning, it is advisable to contact a professional technician to replace the heat exchanger.
4. Repair the Boiler
If none of the above methods resolve the E6 fault code, you may need to consult a professional technician for assistance. Repairing a wall-mounted boiler requires specialized knowledge and skills, so it is not recommended to attempt it yourself. It is safer and more reliable to contact a professional technician when encountering boiler issues.
Summary: This concludes the discussion on how to handle the E6 fault code on a wall-mounted boiler. The E6 fault code is a common issue that typically stems from problems with the sensor or heat exchanger. You can resolve this issue by checking the sensor, cleaning the heat exchanger, or replacing the heat exchanger. If these methods do not solve the E6 fault code, it is advisable to seek help from a professional technician.
