Hayward model H100ID1 pool heater. Pool heater ignites, main burner is on and stays on for 20-30 seconds. 120V to gas valve (purple wire) turns off. I have a new control board problem remains. No unusual noises. What's wrong?
Try running the heater with the filter removed or on bypass . preasure (water line)switches are often the guilty party. and in some casses you may need to bleed the gas line to get fresh gas to the unit, you can use soapy water to check, that the fitting leak free, after bleeding at the block
Answers & Comments
Try running the heater with the filter removed or on bypass . preasure (water line)switches are often the guilty party. and in some casses you may need to bleed the gas line to get fresh gas to the unit, you can use soapy water to check, that the fitting leak free, after bleeding at the block