I have an englander 25 pdv (2003) just had to replace the control panel and I'm having an issue . The stove and generates a nice hot flame in start up, runs a couple of minutes and then the auger feed rates drop off and the combustion/exhaust blower stops. The stove continues to feed pelllets very slowly and will burn for another minute or so until it smothers and goes out. It acts like it doesnt think it is lit and goes into shutdown. No error codes, green (on) led stays on. Good gaskets, good airflow, vacuum hose is solid and connected, stove is clean, HELP???