P0A93 on 2008 Prius

Hi guys,
I'm in AZ. I used the Dr Prius app and OBDII adapter and got the POA93 water pump code. I ordered and replaced with a new Dorman pump (1st) from amazon. I used hose pinch pliers to minimize coolant loss. Burped and bled the valve, added coolant, I visually verified the pump was moving coolant. 10 days later same issue POA93. I visually verified the pump was not moving coolant. I reordered and re replaced with same model new Dorman (2nd) pump, burped bled added coolant verified coolant moving. In hindsight I should have blown out the pump with air compressor and tested with 12v source. I did not. Same issues about 2 weeks later. I also reset the code in Dr Prius and disconnected the 12 v battery for both pumps. I can hear a pulsing noise coming from the pump, not sounding like this whish or whir that an electric pump should make.

Getting ready to put in the 3rd new pump tomorrow.
3rd pump came from the east coast, so maybe a different batch?
Additional info, 7 months ago I installed a new hybrid battery and new 12v battery, And the car has the dashboard capacitor malfunction, sometimes the dash lights do not work, unless the car is cold, then must press unlock on key fob while simultaneously on and off with headlights until the door open icon appears on dash

I also added a pic of the inverter cooling fins. Thoughts on these getting clogged and the pump over heating?
I'm thinking a bad couple pumps? 2 new pumps fail in a short time seems unusual.
Is there a component that controls the inverter pump on/off?
Any thoughts on what I could be missing?
Im open to your thoughts.

Thanks in advance,
Michael