My DCS Range, Model RG-304 will not heat properly. When I set the temperature, recently it will not heat up to the desired temperature. I used a digital thermometer to see what it was doing and it will start heating but will cycle on/off and not reach the desired temp. I tested it at 400 degrees, it cycled at about 250 ultimately reaching around 325 but then cooled off to around 200 and then back up to 300ish. I live in the Cascade Range in Oregon about 80 miles from a population center with any technicians, and can not find a technician to come look at the oven. I bought the stove to avoid too much electronics so that I can fix issues, but can not find a service manual.
I'd appreciate any advice or recommendations about the likely issue, is it the igniter, or my thought the oven temperature sensor. I'd also love to find a link to a service manual to help make the repair as quickly as possible without taking it all apart to find the part.
Thanks,
James