I have a raypak 266 natural gas spa heater. I recently had a gecko get behind the control board and cooked it (2nd time this year). At any rate, i replaced the control board (again) and tried to light the heater and during the startup process it stayed in the spark process and never detected the pilot, even though the pilot was lit. So, i replaced the pilot assembly (hood, etc), and it lit once, and heated for a while and then shut off (as normal), but when it tried to re-light, same thing. No pilot detected. I shut everything down and re-tried, but same thing...no pilot detected. Any thoughts?