I don't know if it is the same as my situation. Last time I bought a Supor, when I pressed it, I found that the air was always exhausting and the sound was very loud. As a result, I kept heating, the heating lamp was always on, and the heat preservation lamp was not on. Later, I went to return the goods and found that the "check valve" could not be reset and could not maintain the pressure, so I kept heating. After returning the goods, I was given a new one. The same old question makes me angry. Later, the merchant slandered me, saying that I couldn't use it, saying that there could be no two unqualified products in a batch. Later, I couldn't find the after-sales certificate, and it was still a product problem. I ask for a refund directly. That's called depression!

Do you think this is the case with you? Will the heating process exhaust all the time? Under normal circumstances, it is necessary to pressurize for a short time, usually within 1 minute, and then it is quiet until it is cooked, and then it automatically jumps to heat preservation, and the heating light goes out and the heat preservation light comes on.