|If your Dryer Has No Light Check the Following
The light socket can get corroded or a wire connection can come loose. You will need to remove the front panel to access the housing on most dryers.
If your dryer has an interior light, it probably uses a standard 40-watt appliance bulb, but check your owner's manual to be sure. If the bulb is good but the light won't come on, check the door switch, which serves two functions: When the door is closed, it turns off the light and allows the dryer to start. When the door is open, it turns on the light and prevents the dryer from starting. To check the door switch check for continuity. You should have some when the door is closed and none when the door is opened.If not replace the door switch by removing the front panel.
It blows fuses or trips the circuit breaker
Electric dryers use 220 volts or two power lines of 110 volts each. Some components in the dryer need only 110 volts; the heating element requires 220 volts. So it's possible for one part of the dryer to be fine and another part to have a short circuit. Short circuits can be caused by the heating element, the main power cord, or any other part of the internal wiring. Loose connections on the power cord cause failures and or fires. This can be checked with the dryer unplugged and removing the service cover and visually check for burning and mechanically check for tightness.
If the circuit breaker trips or the fuse blows when the dryer is unplugged, it's likely the problem is with the house wiring, fuse box, or circuit box. Contact a qualified electrician.