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Some repair / testing tips to verify this is the part you need:
Make sure you test for 240 a/c voltage at the power outlet that the dryer is plugged into. If your not getting 240 a/c voltage from the to power leads coming in you have a breaker or fuse issue. If you are getting 240 a/c voltage and no heat you will need to test the heating parts.
The safest way to check the heater element is to run a continuity test on the element itself, if you have access to a multimeter with a continuity option. First thing you will need to do is unplug the dryer, then take the vent off of the back of the dryer, take out all of the screws fastening the back panel to the dryer, and remove the back panel. Now that you have access to all of you heating parts including the heater coil on the back of the dryer, and you can do your testing. First, using a flathead screwdriver, take the two wires that are connected to the terminals on the heating element off. Set your multimeter to a continuity test and test between both terminals on the heating element. If there is no continuity, the heating element needs replaced. You should be able to find a spot on the heater coil that is burnt in half. Be sure that you clear your vent from the back of the dryer all of the way out of the house and the blower housing before using your dryer with the new element. A good way to tell if blocked air flow was what caused your problem is if you find a lot of lint inside the dryer. If you don't find any lint build up anywhere it would be a good idea to replace the cycling thermostat that control the heat during a cycle with the element.
If you get continuity through these parts you need to run a continuity test on the timer. With the dryer still unplugged. Remove the screws on the back of the control panel to get to the timer. Turn the timer knob to 50 minutes on timed dry. Now test for continuity between the 2 terminals on the timer with the large guage red wire and large guage black wire. If you don't get continuity through the timer the timer needs replaced.
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