I just bought a house with a in-ground pool and all new to this. Had it opened this week and Raypac heater would ignite, just stuck at SPK. Guy said he would service at another appointment because it was likely the gas valve stuck and should fix itself if I keep trying. Today it actually fired up for 5 min but there was a lot of flame. With the panel off, the flames were coming a bit out the edges. After. 2-3 minutes the flame cut out and it started to SPK again. I had to run out so I turned everything off and I'll try again later but concerned about how much fire came out.