Don't worry when the furnace malfunctions; you can consult with our after-sales technical staff online for a solution, or perform a self-inspection based on the following information.

Low water pressure alarm/shutdown for wall-hung boilers: If the wall-hung boiler suddenly alarms or shuts down, check the water pressure of the boiler. The normal pressure during the heating process should be between 1.5 to 2.0 bar. If the water pressure is too low, the boiler cannot start normally, and it will automatically trigger an alarm with the corresponding fault code displayed on the LCD screen.

Users rotate the boiler's bottom water补给 button, observe the water pressure gauge on the operation panel. Once the LCD panel's pressure reaches the normal range, immediately close the knob and restart the boiler to operate normally. (It is necessary to close the gas valve during water补给, and reopen the gas valve after the water补给 is complete.)

2. The boiler encountered failure to ignite and other malfunctions.

Ignition is related to natural gas, spark plugs, and gas burners. When a gas wall-mounted boiler fails to ignite, first confirm that there is sufficient natural gas and that the valve is open. Then, check the ignition position of the spark plug or if the electrode is misaligned, which could lead to the failure to ignite.

3. Erratic hot water temperature

The boiler heating is normal; however, the temperature of the domestic hot water fluctuates between cold and warm. Possible reasons include: a lack of water flow from the自来水 due to problems with valves or circuit boards experiencing large water pressure or air pressure changes, a malfunctioning temperature sensor for high water temperature with poor contact on the wind pressure switch, or a low-power flow sensor with poor performance.

When using domestic hot water, if the cold water flow is too great and the hot water flow from the gas wall-mounted boiler is too small, the boiler will automatically adjust. In severe cases, the boiler may shut off, causing the hot water to suddenly become cold and the flame to diminish abruptly. Therefore, it's advisable to adjust the temperature control knob on the gas wall-mounted boiler when using hot water to achieve an appropriate temperature, ensuring the boiler operates stably. Overly wet hot water panels can also lead to hot and cold water issues, so it's important to contact professional after-sales service for descaling and cleaning promptly. Small areas of water pressure instability may cause fluctuating flow rates, resulting in hot and cold water when the hot water is released.

Fault codes displayed on the screen can also help users quickly identify the cause of the issue, facilitating repairs. During these unusual times, don't panic over temporary malfunctions. First, conduct a self-test, observe the fault codes, and engage in professional online consultation and instructional handling to help restore warmth as soon as possible.