Wall-hung boilers are a type of modern home heating equipment that are typically installed on walls, hence the name "wall-hung boiler." Under normal circumstances, wall-hung boilers provide warmth and hot water for households. Here are steps to restore the E2 fault in wall-hung boilers.
1. Clean the Pump
Cleaning the pump is the first step to restore an E2 fault in the wall-hung boiler. Usually, the pump may malfunction due to dust or debris blocking it. Therefore, we can open the panel of the wall-hung boiler, locate the pump, and clean the surrounding area and the pump itself with clear water. It is crucial to turn off the power supply before cleaning and wait for the wall-hung boiler to cool down completely before performing the operation to avoid any accidents. Cleaning the pump is a simple and effective method that can help resolve some E2 faults caused by pump malfunctions.
2. Check the Pump's Operational Status
If the E2 fault code still appears after cleaning the pump, we need to check the operational status of the pump. Typically, the pump makes noise when it is working; if we hear no sounds indicating normal operation, it suggests that the pump may be faulty. At this point, we should unplug the power and remove the pump, then use a multimeter to measure the resistance and insulation of the pump. If there are any significant abnormalities in resistance or insufficient insulation, it will be necessary to replace the pump.
3. Adjust Water Pressure
Sometimes, the E2 fault in the wall-hung boiler can be caused by insufficient working pressure of the pump. Therefore, we can adjust the water pump's working pressure to solve this issue. The wall-hung boiler generally has a pressure adjustment valve, which we can gently rotate with a screwdriver to adjust. After that, we should wait for a while to allow the wall-hung boiler to restart automatically. Adjusting water pressure is a simple and effective method that can help resolve some E2 faults caused by insufficient water pressure.
4. Check the Water Supply System
The E2 fault in the wall-hung boiler may also stem from issues in the water supply system. We should inspect the supply pipes and water valves of the wall-hung boiler to check for any blockages or leaks. If we find problems in the water supply system, we need to fix them promptly and restart the wall-hung boiler.
In summary, this is how to restore the E2 fault in wall-hung boilers. The E2 fault is a relatively common type of fault, often caused by issues with the pump. When an E2 fault occurs, we can take several measures to restore it, such as cleaning the pump, checking the pump's operational status, adjusting water pressure, and inspecting the water supply system. If none of these methods resolve the issue, it is advisable to contact a professional technician for assistance. We hope this information is helpful in addressing E2 fault issues with wall-hung boilers.
