TM 9-2350-261-20-1
1. Is heater exhaust cold?
1. Loosen fuel inlet line (1) to heater with heater
switch on START.
2. Does fuel fail to flow out of loosened fitting?
YES
1. Inspect fuel lines between tee valve (1) and
heater (2).
2. Are all lines free from kinks, restrictions, or other
damage?
1. Replace coolant heater fuel pump (page 32-14).
2. Verify no faults found.
1. Replace igniter
(page 32-7).
2. Verify no faults found.
1. Replace heater fuel lines as
required (Chapter 32).
2. Verify no faults found.
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