怎麽回複這個要求？

the refrigerator has developed a fishy smell, even after I cleaned it thoroughly. I looked up smells with refrigerators. I’m concerned about the food and any potential chemicals involved. Could we arrange for a technician to check out the refrigerator?

怎麽解釋一下冰箱本身不會產生氣味？是冰箱需要清理