Generac error code 1505 Generac error code 1505. Today I tried to start the unit and it was. Let it run for 15 min and turned it on AUTO. I manually actuated the butterfy valve and was able to get it to run faster. I was able to start the unit and it was running real slow.
Unit had low rpm code 1603 and a under voltage code 1900.
11KW Model G0064383 Ser Running Nat Gas I’m on Northern Ohio Red light was on after weekly test.
