Are you using a remote glow adapter? Depending on the type of remote you are using, if any, you need to visually test to see if its working. If its a single wire remote, make sure the base (remote) part is under one of the engine mounting screws so it is in good contact with the engine. Remove your glow plug and with the remote wire still attached and your igniter attached, touch the threads to the engine and the element should glow. If you are using a two wire remote, then its not necessary to gound the plug to the engine to test it.