Return it to the factory for bulb replacement or take it to an electrician of your choosing.
I do not have this mirror, I have only done research on it in the form of reading of reviews wherever I can find them. I have seen that a lot of people have this problem. I think I read this from a man who posted it on Amazon so if your mirror does not work it is worth a try I guess. Here is his post:
Yes, they can be replaced. First, pop off the "home/office/evening/home" color selector button on the front of the unit. Just pull straight out till it releases. There are two fluorescent tubes inside the unit. 4 screws must be removed to access the bulbs, but these screws have a round filler plug which must be popped out (they are only for looks and really don't need to be put back in because you will probably damage them to some degree). They are located on the back side of the mirror and really don't appear to be screw holes. Pop or pry out the 4 plastic plugs and you will find 1 each Phillips head screw. Remove the screws and carefully separate the front from the back, being careful to not let the mirror fall out. Rotate the light filters until you see the full tubes visible. Pull upward on the end of the tube that does not have the plastic shield above the wires, then remove the 4 wires on each tube (you may need a needle nose plyer to get the wires off). Pull the tube out of the bracket at the other end. Replace the tubes and reassemble in the reverse order as taken apart. When reinstalling the color selector button on the front (very last step), center between the visible prongs on the track and press until it physically and audibly clicks/locks into position. Tubes can be purchased at Lowes, Home Depot, or maybe even Walmart. Tube name: F6T5/CW (CW stands for the color: cool white). This is a standard, available tube. Note: always replace both tubes at the same time to avoid tube intensity differentials. The primary indicator that a tube is failing or beginning to fail is a blackened end in the lighted section when the tube is on. When it reaches about 1/2" in length on either end, it will soon fail.
answered 1 year, 1 month ago
Thanks for your question.
If your mirror is still under warranty, you can mail the clipped end of the electrical cord along with your sales receipt to Jerdon Style, 1820 North Glenville Drive, Suite 124, Richardson, TX, 75081 for a free replacement of the unit. If it is not under warranty, you can buy the replacement bulbs and work with a qualified electrician to install them (it's a bit tricky). A simpler approach is to send the unit to the address above along with a fee of $12.00. We will replace the bulbs and return the unit to you.
We hope this helps!