James H Santa Fe , NM March 16, 2014 Appliance: General Electric Electric Range ZGU661EM1WG The spark module had quit working The replacement spark module was delivered on time and the installation took less than an hour. Saved me hundreds of dollars over having a repairman do it. Read More... 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes Tools: Adjustable Wrench, Screwdrivers