I had a new Hayward Heater (H400) installed today. The heater initially fire up fine. Reached 100 degrees on the spa, cooled to 93 I when I checked the heater the "IF" (ignition failure) was blinking. I tried firing it again with the same result. An hour later, after it recirculated the pool water into the system which was cold, the heater fired up. I didn't let it get to 100 degrees this time but rather called the installer. He came back out to look at it and told me that it runs for a bit and then looses gas supply.
He is going to call Hayward on Monday. In the mean time, I am trying to troubleshoot myself.
My previous heater which died after ten years had a similar problem towards the end if its life. When we moved into the house two years ago everything worked fine. Several months ago I noticed the heater would get the spa to temp but would not kick back on when the temp dropped.
Do I need to have a pressure drop test done? Problem with the gas line or the heater?