What should be checked if a heater display indicates an error in operation?

When a heater displays an error in operation, it is crucial to check all relevant components to diagnose and resolve the issue effectively. Each of the listed components can contribute to operational problems:

• The power supply is foundational for any electrical appliance. A malfunction, such as a tripped circuit breaker or a blown fuse, can prevent the heater from operating correctly, causing it to display an error.

• The thermostat setting is equally important, as an incorrect setting might lead to the heater not functioning as expected. If the thermostat is set too low, the heater could interpret this as an operational error.

• The flame sensor plays a vital role in combustion systems, ensuring that the flame is present during operation. If the sensor is dirty or faulty, it may fail to detect the flame, resulting in an error code being displayed.

By checking all these components, one can systematically identify and resolve the cause of the error. Therefore, it is essential to consider all aspects—power supply, thermostat setting, and flame sensor—when addressing operational issues with a heater.