You can look at this manual:
https://dl.dropbox.com/u/8010163/How...e%20Manual.pdf
You will have to learn to use a meter before you will be able to fix appliances. It's very simple: Ohms is a measure of resistance to current flow; the more ohms the less current flows. Coils have different resistance measures, but in most gas valves you will measure more than 500 ohms up to about 3000 ohms. Never measure power on ohms or it will blow the fuse, unless you have a meter with automatic protection, which you need. Get a book on reading schematics. You need to understand the simple symbols used. Most schematics have legends, but the symbols are universal, mostly. If you have the meter on "volts" and read across a switch, if you read any volts the switch is open or partially so. No voltage across switch indicates a closed switch, if voltage is in the wires connecting to it.