My Regency LRi4E lights perfectly, blower eventually kicks on, but then perhaps 10-15 minutes later, burner AND the pilot shut off completely(its set to continuous pilot). Blower keeps running until it cools down enough. When I try to restart it via the remote, nothing happens-pilot doesn't light. After a little while, it all works again. It almost seems as though something is overheating & shutting the burner and pilot off? The pilot does stay on once its lit, even after turning off the burner via the remote. But when the burner cuts out on its own, the pilot cuts out as well. Any ideas?