Upon arrival I spoke Robert the unit that I reset yesterday was not operating again. The unit was again locked out on â€œ ignition failure â€œ Which means there was no spark or no gas. I reset the unit and it fired up and operated fine with no issues. I turned the unit off and pulled the burners and cleaned them. I also pulled the flame sensor and cleaned it, turned the unit back and flame sensor was sensor 4.5 micro amps. I also checked the incoming gas pressure and it was 7. Inches of water column, and while firing it dropped to 6.7. The gas pressure out of the gas valve was 3.6 inches of water column. I reset the unit many times and I was never able to recreate the issue. The unit was running perfect for the 2 hours I was here on site.