2-34. WATER HEATER BURNER HEAD AND NOZZLE ASSEMBLY (CONT)
Water heater is hot after being used and may cause injury to personnel if safety
precautions are not followed. Allow heater to cool before maintenance is
Fuel is toxic and flammable. Spilled fuel is a fire hazard and eye irritant. Wipe up
spilled fuel to avoid injury and fire.
The scanner is a sensitive device.
Rough handling can damage the
scanner and result in possible failure
of flame safeguard control.
Disconnect two ignition cables (1), fuel line (2),
and scanner (3).
Remove three nuts (4), lockwashers (5), and
nozzle and electrode assembly (6) from burner
Do not remove the burner tube
unless it is necessary.
Remove four nuts (7), lockwashers (8), burner
tube (9), and gasket (10) from water heater (11).