Instruct: Classify the given Amazon review into its appropriate rating category
Query: Internal Fan Issues

This unit would be good if the internal fan wasn't defective. Not sure if it's a cheap quality fan but it's whirring really loud like it's going at 1 million RPM or something. Worked fine for a month with low noise but now I'm afraid that the fan is going to cause some issues so we can't leave it plugged in especially if we leave the house. It could catch fire or something.