According to Article 38 of the Detailed Rules for the Implementation of the Regulations on Hygiene Management in Public Places, operators in public places who work without health certificates will be ordered to make corrections within a time limit and be given a warning. At the same time, the operator will be fined 500-5000 yuan. If the operator fails to make corrections within the time limit, the fine will be raised to more than 5,000 yuan15,000 yuan.
Therefore, the fine for going to work without a health certificate is 5,000 yuan above 500 yuan, and the specific fine amount will depend on the situation.