I purchased a 1502 Sportsman Incubator new a few years ago and have been very pleased with it. Toward the end of the incubating season last year, it started feeling cool inside. I called the factory and was told I needed a new thermostat. I purchased this new thermostat about two weeks ago and my son installed it today and when we plugged the incubator in it had a red beeping light and said 'system failure'. Any help from anyone on what my problem could be would be greatly appreciated. Thanks.