I have a Hayward H250 Natural gas heater and I just replaced the bypass assembly to the newer model as the old one broke. I am now getting the LO code.
* Filter is Clean
* I have let the pump run for 2-3 minutes to reset the heater
** Only concern is maybe the red and blue wire going to the back of the water pressure switch. I can not find a picture.
The heater worked before installing the new bypass kit but it would ping and make loud noises due to the broken bypass part.
Any help would be great