Electric fireplace quits

If this it like mine the high temp limit switch inside is "dirty" from lint, etc. that collects during normal operation. I have had to open mine up twice in the past six years and vacuum it out. The instructions are on the Dimplex site and it isn't hard to do. There are just a lot of screws holding the heat box together. The second time it was much faster than the first. There are several power connections that should be removed to get the heating element out to clean it real good. Just take a picture of these to make sure you put them back in the correct place.