We have a Raypak heater. It's old; I don't remember its exact age off the top of my head. Last year, it worked sporadically. At first, we thought the pressure switch was the issue. But we replaced it, and the heater continue to fire intermittently.
We've been told we need a new gas valve, which is a hefty priced part. But here's the thing: over the weekend, my husband went out, turned on the gas, lit the pilot and turned the interior knob back to on and the burners lit. We hadn't yet turned the switch on the outside of the unit to on, nor had we messed with the thermostat dial. So we let it run for 24 hours, which got our pool to a decent 82, and then turned it off again. Does that sound like a gas value issue to you? Last year, it seemed we couldn't get the burners to fire, even after the pilot was lit. But yesterday, they fired just fine. But the switch to turn the unit on wasn't on? What does that mean?
We are trying to determine if we want to sink $500 into this workhorse, or if our weekend findings point to something other than the gas valve, or if we should just start saving our pennies for a new heater.