INSPECTION AND REPAIR
A Replace, combustion air tube (1) if cracked or broken.
B
Straighten igniter end plate (2) if distorted.
C
Replace terminal board (3) if terminals are broken or if
board is damaged.
D Test and adjust fuel control valve (4) (p 10-5).
E
Replace insulating sleeve (5) if burnt, torn or deteriorated.
F
Replace fuel tube (6) if cut.
G Replace igniter (7).
H Replace resistor (8) if ceramic is cracked or igniter lead is
loose or broken.
I
Test continuity of resistor (8). Replace if open or shorted.
J
Repair or replace electrical connector assembly (9) if ter-
minals are broken or loose.
K Replace flame detector switch (10) if tube is bent or
damaged.
L
Clean flame detector switch tube (11) if corroded.
10-7
TM 9-2350-267-34
