We have a state select power vent water heater. Last October it stopped working and the plumber replaced the ignitor as the wires had shorted out. Then it happened again in the beginning of January 2008 and he again replaced the ignitor. Well, our water heater stopped working again today and the ignitor wires have again shorted out (looks like they are melting). Does anybody know why this might be happening? The plumber does not have any idea. Thanks!