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Now to remove the burner, This type Weil McLain boiler has simple aluminum burners that come out easy just grab the burner lift so that the rear of the burner comes up then pull it forward to clear the brass fitting it is resting on.

be careful not to damage the pilot tubing when taking this burner out sometimes it runs under the burner manifold and other times it goes over. now you have the burner with the pilot assembly in your hand.

Replace Thermocouple Step d