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Boiler Shutting Off / Cad Cell Relay Light Going On

Jeff_H Member Posts: 37
Recently, my Burnham V75 boiler has been shutting off and when I check to see why, I see the red light on the cad cell relay on. Fortunately, when I reset the cad cell relay, the boiler comes back on.

I have had the relay device swapped out (from a Honeywell to a GeniSys) and even had the motor changed, but I keep having the problem.

Could anyone recommend the next thing to look.



  • burnerman_2
    burnerman_2 Member Posts: 297
    Ohms to high,Igniter trouble,oil delay valve, coupler slipping, pump screen, oil filter, plugged fuel line.... with a Genisys you can hook up a contractors tool and see why it is locking out on reset