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Hi guys, I have a 27 round, above ground. Ran it crystal clear all summer until the wall failed late Aug (rust spot, older pool). Put in a new one, filled it and immediately had an algae problem, maybe I was to slow on the cya.. anyway looking to balance the numbers, but my tf100 showed me 20...

Hi guys, I was hoping so gleam some heater knowledge from the experts here. I have a Haayward H400idl2 and the blower does not turn on. It gives me an AO error code. I believe this is a blower code, but what are the first steps I should take? Thanks in advance!