What are the maintenance methods for gas wall-hung boilers? Everyone has their own set of principles when choosing heating tools. Gas wall-hung boilers are very popular among heating tools. Wall-hung boiler is actually an abbreviation for gas wall-hung boiler. An indoor thermostat can be connected externally to better control the temperature and achieve energy saving. Let's briefly understand the maintenance methods of gas wall-hung boilers. 1. Insufficient pressure Fault cause: After the gas wall-hung boiler has been running for a long time, its heating system will have a certain pressure drop, which is normal. There may be two reasons: a: The internal pipes of the heating system are not strictly sealed, resulting in system leakage and lack of water inside; the internal expansion tank is too small. Insufficient air will also cause a drop in water pressure. Gas wall-hung boiler maintenance method: If it is the former case, the heating system needs to be checked and maintained; if it is the latter case, the system expansion tank needs to be recharged. 2. The fire is large and small Reason: Adjust the faucet when using the gas wall-hung boiler. If the cold water is too large, the hot water of the wall-hung boiler will become smaller. Conversely, if the hot water of the faucet is too large, the cold water of the wall-hung boiler will become smaller. This will cause the fire of the fireplace to fluctuate, and the hot water will also fluctuate. Gas wall-hung boiler maintenance method: When using the gas wall-hung boiler, the boiler temperature should be adjusted to an appropriate position, and the faucet should not be opened too large, so that the frequency of hot and cold water