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System 2000 Burner Lockout
I have an older System 2000 that keeps going into burner lockout. When I realize there’s no heat, I go down and see the reset is tripped and the 140 light is blinking which I guess is what you’d expect to see in lockout. I press in the reset and power the system off and on. It fires up fine. Runs for a number of hours, multiple cycles, but eventually cuts out again. I’ve had a guy out twice. He’s jiggled wires, checked the nozzle and the flame indicator, hasn’t changed out the controller but seems to think it’s fine, and he’s swapped the relays behind the panel. Not new relays but just moved them. I think he’s also changed out that temp sensor and wire. You guys have any ideas? Thanks very much.