Customer said he was smelling sewer gas from the bathroom where I installed a smart toilet. After diagnostic, I determined there was no break in the seal. Customer toilet performed flawlessly. I ran multiple test flushes on toilet and there was no water seepage. Caulking line was not compromised. I did not smell sewer gas during my visit. Customer said he slightly smells it from the bowl. Advised customer I can pull toilet to see if there is a compromise in the wax seal. We determined that customer would monitor the smell for little while longer. I advised customer to constantly check for any leak after flushing. If smell gets worse or persists, I advised customer would be left with no option but to pull the toilet.