All Hayward stuff. When switching between modes on the filter, does not seem to "engage" Pump off during switch of course.
Go from filter to backwash, nothing happens, fiddle with it a bit and them it starts to work, then go to flush. same problem.
Occasionally the pump pressures will go nuts, swinging wildly and rapidly between 0 and 25, pump/filter making strange noises. Shut pump off, wait a couple of minutes and it's fine again.
Any ideas, this started on Saturday. Pump ran all last night with no issues.....but I'm getting worried.