Saturday, 10 April 2021

Hayward H400FDN AO error question

I've got a Hayward H400FDN (up to October 2010 Model, according to the troubleshooting guide) and I am having an AO error after replacing both the display board and control board as well as the blower and vacuum switch.
Steps taken:
  1. Jumped the vacuum wires and it changes to a AC error so the wiring to the switch seems fine.
  2. Tested the voltage and it's sending 128 to the new blower when a call is made but the blower isn't starting.
  3. If I trip the breaker while it's on the...

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