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A steam trap is unable to discharge condensate; if it shows no response for an extended period of time, the temperature on its surface drops, and this is a condition in which the steam trap cannot open. Reasons for this fault: 1. The filter or piping is blocked by impurities and debris, preventing condensed water from flowing into the steam trap. The dirt inside the filter, pipes, and valves must be cleaned. 2. If the amount of condensate discharged by the steam trap is very small or the interval between its operations is long, then it is necessary to replace it with a steam trap of smaller capacity. 3. The drain valve that does not discharge condensate remains hot; the steam blockage phenomenon caused by steam or secondary steam disappears once the steam is condensed. This is due to improper installation of the steam trap; there should be no areas where condensed water can accumulate along the inlet pipe. 4. If the water hammer float is damaged and cannot rise when water enters, it should be replaced with a new float. 5. Excessive pressure. The pressure in the steam-using equipment exceeds the maximum operating pressure of the steam trap, preventing it from opening. Replace the steam trap with one that can handle a higher working pressure, or adjust to reduce the working pressure of the equipment that uses steam. 6. A vacuum has formed in the water heater coil, preventing drainage. Install a vacuum breaker between the heat exchanger and the water valve. How to determine whether a steam trap has failed varies depending on the type of steam trap; simple methods require extensive professional experience, while there are also many specialized methods for detecting issues with steam traps, which involve the use of certain equipment. Since you say that the condensate is excessive, it means that the drain valve is not allowing water to flow out, or the amount of water drained is less than the amount of condensate generated. This can be easily identified on site. However, there are many other reasons that can lead to severe water hammer; it may be due to an inappropriate selection, incorrect installation, the absence of a filter in front of the steam trap, or a failed filter that results in blockage of the steam trap.