Hello. The first thing you need to do is test the voltage at the outlet. You can do this with a voltohm meter, anolog or digital. You could put a simple tester in there to see, but I feel that you need to know how much voltage is present. This is really easy to do. I'm going to post a link for you that will show you everything you need to know about using one of these meters. You can get them for under 20 dollars and be plenty sufficient for this test. Here's the link for the meter;http://applianceassistant.com/safety/how_to_use_a_volt_meter.php
Take a look at the bottom picture first. When you have your meter set to read AC volts, you have to make sure you have it set on the next highest number past 240. You will probably have to set it to read 250 volts AC. You have a red test lead and a black test lead on the meter. It doesnt matter which one you put where when you do the test as far as color goes.
1. Insert one test lead into the neutral L shaped slot, and the other test lead into one of the rectangular slots. You should get a reading of around 110 volts.
2. Insert one test lead into the neutral L shaped slot (again) and the other test lead into the other rectangular slot. You should also get around 110 volts.
3. NOW insert one test lead into the rectangular slot, and the other into the opposite rectangular slot. You should now get around 240 volts.
These tests will tell if you if the outlet itself is getting the proper voltage from the service panel. The service panel uses 2 breakers or fuses to supply the outlet. That's why you have 110 volts going to each side. It's possible to have only one side working. Some dryers can work because one "leg" is getting power, but the other isn't so the dryer wont heat. But it's circumstantial to how the dryer is set up. MOVING ON
Now you will need to locate the terminal block on the back of the dryer. Just follow the cord into the back. It's usually covered by a panel that has to be removed. Make sure the dryer is unplugged first. This will be a live test, so you'll need to use caution when performing this. 220 volts is no joke. If you dont feel comfortable doing it, I'd call a technician.
You will need to remove the panel covering the terminal block. Down at the bottom is a picture similiar to what you're going to see. Inspect them visually at first to make sure there's no burnt wires, loose connections, etc. If everything looks normal, you will now need to plug it in and test the voltage on the screws where the wires attach.
First- set your meter up the same as above;
1. Touch one test lead to the far left screw, and the other test lead to the middle screw. You should get around 110 volts.
2. Touch one test lead to the far right screw, and the other test lead to the middle screw. You should also get around 110 volts.
3. Touch a test lead to the far right screw, and the far left screw. You should get around 240 volts.
If you dont get the proper voltage with these tests, you'll need to replace the cord to the dryer and perform the tests again. You might have to replace the terminal block inside the dryer, especially if it has some burn marks.
I hope that you find this helpful. The results of these tests will determine the next course of action. If you dont have any experience using a meter, dont be intimidated by it, it's not hard if you follow these instructions i've given and the instructions in the link.
If you have any questions, I will be more than happy to help you out. Let me know how it goes if you can.
Thanks for your time,
I tried to cover everything without making it too lengthy and boring.