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SERVICE PROCEDURE D24-IV
Main Burner & Pilot
Removal and Inspection
P
ilot Burner Removal
Step 1. With burner rack removed from heater, disconnect
pilot tube connection from gas valve
Step 2. Remove the two pilot burner mounting screws
securing the pilot and pilot shield in place.
S
tep 3. Remove pilot shield and pilot from burner rack.
Step 4. To install pilot burner and pilot shield, reverse above
procedure. Be sure to reconnect green ground wire.
P
ilot Shield
P
ilot & Pilot Shield
M
ounting Screws
G
round Wire
L
ocation
Pilot Burner Inspection
Step 1. Inspect pilot for the following:
a) Broken or cracked ceramic insulators. If found,
pilot must be replaced.
b) Damaged electrode or flame sense wire. If found,
pilot must be replaced.
c) Oxidation build-up on flame rod. Clean flame rod
or replace pilot as necessary.
Step 2. Inspect pilot orifice:
a) Remove 7/16" ferrule nut from bottom of pilot.
b) Remove pilot tube and orifice from pilot.
c) Inspect pilot tube for blockage. Clean or replace
as necessary.
d) Inspect pilot orifice for blockage. Clean or replace
as necessary.
Flame Sense
Wire
Ignition
Wire
Ceramic
Insulators
Flame
Rod
Pilot
Orifice
7//16"
ferrule
Nut
Aluminum
Pilot Tubing
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