[HayZee518]

If you do a monitor heater repair search you'll eventually run up against Al Lucey who is there in Maine. Stay away from him. He speaks highly of himself but doesn't offer much for help. take off the front grill ( three screws) take off the top ( three or four screws) remove the front panel with the control switch board (four screws) remove the combustion liner plate (four screws) and rotate it out of the way. there's one screw holding the pot to the side plate remove this, then take all the screws out of the top of the burner pot. save the gaskets they'll be very fragile and might crumble. rotate the combustion ring 30 degrees counter clockwise and it'll come out.