AquaRite SWG No lights or display

[tigerpilot]

Latest board. No LED’s lit. No display. Thermistor replaced, 20 amp fuse good. outage set for 120 and input voltage is 120.
No burnt marks on back of board. I appreciate any suggestions.
Thanks, Don

 

[C0d3Sp4c3]

I have yet to hear a Thermistor failed in the newest sw built r1.59 bd
I found the below yt videos that might give you some leads.
Aquarite No Display No Lights == Fixed ==
or Hayward Aquarite and Aquatrol/ Display and LED's not working/ Diagnose and Repair

 

[Dano11]

My fuse "looked" good but I got a new one and all lights, displays now work. Had an electrician over for other job, and he tested 2 that were hard to tell visually, but they were both bad. Going to grab a few to have on hand ( I believe they are 20 amp mini fuses). I went through all of this with my first Hayward aquarite, replaced the thermistor and got another few months out of it before it quit on me again. So I replaced the whole control box. Now I'm wondering if it was the fuse all along.