Hayward H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1 "gas error ao" Questions

...error code. I took the blower fan off and it spins freely and appears to be in good shape. Any ideas on what I should do next? check gas pressure if not enough it will not run call gas company sounds ...

...gas hooked up ao error message tube okay and blower working - ao message after about 1 minute after turning on I recommendyou call the Hayward technical support at 908-355-7995and they might be able ...

ao error message in Hayward heaters My spa heater is showing ao error message and would not kick in to start heating help You didn't indicate exatctly which model you have. But on most the AO error ...

AO error I have a H400 heater that seems to work fine until it started clicking, then now it shows a AO error and wont turn on. I just want my pool and heater to work again, with out spending alot of ...

...gas. It could be other things but this is the first thing to look into. AO usually has to do with the blower vacuum switch. Several items can cause an AO fault code. First thing to check would be is ...

AO error code I replaced the vent pressure switch on my customers H250IDL after a repeated AO error code. I went through the service/troubleshoot test modes and the blower seems OK although it does ...

error AO ON MY HAYWORD H SERIES POOL HEATER The AO mindicates an open prover switch ,, here from Hawward site . If the blower prover switch opens unexpectedly during operation the control will shut ...

...AO'' error. H400IDH I recently turned on my heater to heat the spa after a few months, 30 minutes later I noticed the water was cold. The display read ''AO''.. I took the top cover off the unit and ...

ao appears after ignigtion Either the fan is not working, or the fan prover (pressure switch) switch is stuck. If you can hear the fan going strong, it is most likely the switch. You may try to just ...