I don't know much about fireplace and heaters. This Winrich perfecta four seasons gas stove was given to me about a year ago to fight off the cold here in PA. Anyways it has always worked with no problem. I keep it runnong 24/7 in the dining area. A few weeks ago it turned off. When i attempt to turn it back on, it turns on for maybe a minute or so, sometimes shorter, sometimes longer, but then shuts off. I have noticed that when it doea turn off it is caused by some sort of a clicking sound in the bottom where the pilot is located. Im wondering if it may be an electrical problem or something causing the gas to shut off. Any help would be greatly appreciated as i would like to fix it myself without having to dig out cash to pay a service technician or worse yet buy anothet gas heater. Thanks.