There could be several reasons why your electric oven is not heating up even though it turns on and makes a buzzing sound. Here are a few possibilities to consider:
Heating element: Electric ovens typically have one or more heating elements that generate the heat necessary for cooking. If a heating element is faulty or burned out, it may need to be replaced. A visual inspection of the elements can help determine if there are any visible signs of damage or if they are not glowing when the oven is turned on.
Temperature sensor: Modern electric ovens usually have a temperature sensor that monitors the oven's temperature and signals the heating elements to turn on or off accordingly. If the sensor is malfunctioning, it may not accurately detect the temperature, leading to heating issues. A faulty temperature sensor might need to be replaced.
Control board or relay: The control board or relay is responsible for sending signals to the heating elements to turn them on or off. If there is a problem with the control board or relay, it may prevent the heating elements from receiving power, resulting in no heat. A professional technician can diagnose and repair or replace the faulty components if necessary.
Wiring or electrical issue: It's possible that there is an electrical problem within the oven's wiring or circuitry. A loose connection, damaged wire, or tripped circuit breaker could be preventing the oven from heating properly. In such cases, it is best to consult an electrician or a qualified appliance repair technician to inspect and address the electrical issue.
It's important to note that electrical appliances can be hazardous to work on without the proper knowledge and expertise. If you're unsure or uncomfortable with troubleshooting or repairing electrical components, it's recommended to seek assistance from a qualified professional or contact the manufacturer's customer service for guidance.