See picture and model in my signature. Heater was fine all of last season and most of this year. I think this IF error happened in the last few days. I restarted heater and listened. Could hear ignition try to click on but didn’t light. I could smell gas just fine (we are hard lined to the township gas lines so we don’t run out). Any way to troubleshoot this myself or should I call a pool company? I’m not particularly handy with plumbing or electric but willing to try if someone can walk me through it safely. Thank you!