Fault codes occur on many appliances, and the meaning of the fault code can often be found on the manufacturer's website. For instance, if a person has a GE range and the fault code F4 appears, he can find the issue by looking at the GE website.
Fault codes are programmed into appliances so repair people can quickly discover why an appliance has failed. It is usually easy for consumers to find out what a code means by looking it up on the Internet, but it is not always easy for a consumer to perform these repairs. Most appliance manufacturers recommend that a service technician be notified when a code is shown on a device.
Depending on the appliance type and the issue, there are some repairs that an owner can fix without professional assistance. For example, if a person has a Whirlpool Duet with an error code F/02, it could be as simple as a plugged or twisted drain hose. As a consumer, calling a repair technician for assistance with a twisted drain hose may not be necessary. However, if the code remains even after fixing the hose, there may be another issue, such as a faulty pump. This is an issue that should be repaired by a professional.