Repair by replacing and cleaning authorized parts.
Screw flame thermostatic switch (1) in side of exhaust opening. Install
cover panel if necessary.
Spark arrester (2)
Position spark arrester (2) in exhaust opening and install two machine
Machine screws (3)
screws (3) through side of exhaust opening and spark arrester.
Internal tooth lock
Install two internal tooth lock washers (4) and hexagon plain nuts (5) on
ends of machine screws (3) and secure.
Hexagon plain nuts (5)