I have a Hayward 400k BTU heater that seems to work fine, if i can actually get it to ignite. Sometimes it will fire up right away but it seems most of the time it tried and then i get an IF error and it kicks into service mode. If I press MODE and switch it back to pool, it will try again and eventually it will light and work fine. Does anyone know what I should troubleshoot first? I know nothing about heater internals.
Thanks!
Thanks!