My wife brought home a flat iron, used for straightening hair, from a woman she works with. It would turn on, but not get hot. I opened it up and discovered that a resistor (one lead blown off the board) and a triac (case had a chunk missing) had failed. Questions: What would have had to happen to cause this? What likely failed first? Did the resistor fail, causing the triac to fail, or vice versa? The resistor is tiny, about 6mm x 3mm, and the 5 color bands are very hard to read. My DMM reads 1.2 Mohm. Is the reading from a failed resistor accurate enough to get a replacement? If you had a resistor that you couldn't read the color bands on, how would you replace it?
Thanks in advance.
Tim