We responded to a service call regarding an electric furnace issue. The customer reported a loud humming noise and provided audio clips for further analysis. Upon inspection, we found that the transformer was outputting only 17 V, indicating it was failing. This low voltage likely caused the humming noise and prevented the oven from heating. We recommended an electrician visit to inspect the electrical panel and address any additional issues to ensure no further problems exist. The customer was informed about the potential transformer failure and advised to schedule an electrician soon.
