If you see that your appliance is malfunctioning, it’s best to call a competant service technician immediately. While there are some things you can try at home before calling for a repair, don’t wait to call a professional for help.
Waiting until your appliance completely breaks before calling a repair company could cause more and end with a replacement. Instead, it’s better to get it looked at sooner rather than later. Routine maintenance is more cost-efficient than a major repair!