Hello MeKenzie,
If the dial on the device is stuck this may be caused by a sticky substance building up around or under the dial. The first step would be to take a cleaning agent and anything that could fit under and around the edges of the dial and try to clean as much of the substances as you can. If it is still stuck then please refer to our troubleshooting page for a more technical solution.
www.ifixit.com/Wiki/Fahreheit_FHT_125PRMR_Troubleshooting