In October, I bought a home with a domestic hot water tank with a Carlin EZ-1 burner on it. It’s been working fine, but today the primary control locked out and I can’t get it to come back on. On the primary control, the red Lock Out LED is lit, no other lights. On the thermostat, the green Power On and amber Call for Heat LEDs are lit.
Pressing the red reset button on the primary control doesn’t do anything. If I press and hold for any amount of time (tried up to 80 seconds), nothing happens. When I kill the power and turn it back on, the green Flame Sense and amber Self Test LEDs light up, then the green one goes out after a couple second, then the amber one goes out and the red one comes on after a couple more seconds.
I’m a handy homeowner, not a professional, so I am not sure how to begin troubleshooting this issue. I would appreciate any advice!
I attached a picture of the control locked out.
I took a video of me resetting the thermostat to show what the primary control does as well: https://www.dropbox.com/s/lw39q9yw1g1k2v7/Video Dec 07, 12 20 09 PM.mov?dl=0