My Rheem gas hot water heater went out on January 20th. I had someone look at it who thought it might be the thermocouple, apparently not. then possibly thermostat, don’t think so. Now i’ve been told might possibly be some computer chip or module, I don’t know. The tank and parts are under warranty but labor of course is not. I need someone to fix as soon as possible that won’t charge me an arm and a leg in labor. My heating unit for my house also uses hot water to circulate through to heat my house and it’s getting pretty cold in the house as well. I am a single mom and have my daughter recovering from COVID with pneumonia right now and really need hot water and heat. Thanks to anyone for the help.