1. Water pressure problem: When water enters and exits the wall-hung boiler, problems will occur if the water pressure is too high or too low. When the water pressure is too high, it may damage the furnace or leak water; When the water pressure is too low, the furnace may make noise or not work normally. It is recommended to check the water pressure regularly to ensure that it is within the correct range (usually 1-2 bar).
2. Water quality problem: If the water quality entering the wall-hung boiler is poor, such as containing impurities or a lot of hard water, it may lead to blockage or scaling of the water inlet pipe. This will cause the water flow to slow down or stagnate, thus affecting the performance of the furnace.
3. Pipeline problem: The water inlet and outlet pipeline of wall-hung boiler may be damaged or blocked, resulting in slow or stagnant water flow. This may be caused by aging, damage or unreasonable design of the pipeline. Maintenance needs professionals.
4. Installation problem: There may be problems in the connection between the inlet and outlet of the wall-hung boiler and the pipeline, which may be caused by incorrect installation or poor lubrication. This may lead to water leakage or other problems. All pipes and joints must be properly installed, lubricated and inspected to ensure that they are in good condition.
These are just some possible reasons. In case of water inlet and outlet problems, it is recommended to contact professionals for inspection and maintenance.