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My oil boiler keeps locking out - Heating & Cooling

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Turn off the power to the system and then open up the transformer using a 5/16 nut driver. The transformer is hinged and it will flip out of the way. Look for a small black cylinder with yellow wires. Clean off the eye. Then turn off your oil supply to the burner. Using a 7/16 wrench, unscrew the very small copper line at the end where it enters into the burner housing, then spin off the round nut holding the drawer assembly. Rotate the drawer assembly and pull it out. Inspect the nozzle for soot and replace. The size and angle of spray will be marked on the side of it. Inspect and adjust your electrodes according to the manufactures specifications of the burner (not the boiler). Put everything back together and test fire it. If your boiler has not been cleaned in the last year, change the filter at the oil tank. If it continues to lock-out, change the primary control (usually honeywell 8184G) with a newer version.

Posted on Apr 09, 2011


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