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SERVICE PROCEDURE D24-IV
Main Burner & Pilot
Removal and Inspection
WARNING
Heater components may be HOT when performing the following steps in this procedure.
Take necessary precaution to prevent personal injury.
Main Burner Removal
Step 1. Disconnect (un-plug) water heater from
electrical supply.
Step 2. Turn “OFF” gas supply to water heater.
Step 3. Rotate gas valve control knob to the “OFF” position
(see photo 17).
Step 4. Disconnect Gas supply line from the gas valve
(see photo 17).
Step 5. Disconnect wire leads from gas valve
(see photo 17).
Step 6. Disconnect white flame sense wire & orange ignition
wire from Ignition module (see photo 18).
Step 7. Remove the two burner rack mounting screws.
Step 8. Slide complete burner rack out from heater
(see photo 19).
Step 9. To install burner, reverse above procedure.
Gas Valve
C
ontrol Knob
Gas Supply
Line
Gas Valve
Wire Leads
B
urner Rack
M
ounting
S
crew
Main Burner Inspection
Step 1. Burner tubes should be free of any flue
scale or other debris. Clean
burner tubes using a stiff brush and/or
shop vac. Burner ports should have uniform
openings. Replacement is recommended for
burners where port area is deteriorated or
other unintended openings are present.
Step 2. Insure pilot shield is in place (see photo 20).
Step 3. Inspect pilot position to insure smooth burner
ignition from pilot flame. Pilot should be
mounted using the two mounting screws thru
the burner support bracket resulting in a level
pilot position.
19
Pilot
Shield
Page 12
17
20
18
F
lame sense
w
ire
I
gnition wire
12