I have a 10 year old Hayward 400,000 BTU Propane heater. Yesterday it gave me an IO (ignitor open) failure code and wouldn't fire up. Pulling the ignitor connector and measured the resistance at 15 ohms which is in the middle of the good range. Wiring looks good. That's where the Hayward troubleshooting manual stops.
Any ideas?
One note - the screws on the flame sensor are completely rusted off and the flame sensor is hanging in it's mounting hole. Although not good it doesn't seem that should create this error.
Thanks for the help
Any ideas?
One note - the screws on the flame sensor are completely rusted off and the flame sensor is hanging in it's mounting hole. Although not good it doesn't seem that should create this error.
Thanks for the help