It is possible that the steam heater's temperature sensor is defective, which would prevent steam production. If the sensor does not give a reading when tested, it indicates that it may be defective and should be replaced. It is also possible that the pump control circuit is defective, which would prevent the pump from operating when it is supposed to produce steam. In this case, it is recommended to check the electrical connections and replace the defective parts if necessary. Finally, it is possible that the steam valve is clogged or damaged, which would prevent steam from coming out. It is recommended that the valve be cleaned or replaced if necessary. If none of these problems appear to be the cause of the problem, it may be necessary to call a qualified technician to diagnose and resolve the problem. ....
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