I have a Hayward H Series heater for my in ground pool (natural gas and self ignition). I had power to the unit but it wasn't turning on. I replaced the fuses and now the unit is turning on but it is staying in "standby" mode with a "bo" error code. I tried holding the mode and down buttons for 3 seconds but to no avail. I did shut off the gas before when I was trying to figure out what was wrong with the unit. I thought I may have to light the pilots but when I opened the unit, it stated on the inside panel not to try to manually light the pilots. If anyone has any insight I would be very grateful!
Rob
Rob