Section III. TROUBLESHOOTING
3-5 General
tions. If a malfunction is not listed or is not correc-
ted by listed corrective actions, notify supervisory
This section contains troubleshooting information
personnel.
for locating and correcting moat of the operating
troubles which may develop in the heater. Each
3-6 Troubleshooting Procedures
malfunction for an individual component, unit, or
The malfunctions and troubleshooting procedure
system is followed by a list of tests or inspection
are shown in Table 3-2 for the heater. For engine
which will help determine probable causes and
malfunction and troubleshooting see TM 5-2805-
corrective actions to take. Perform the tests/in-
256-14. Before using the troubleshooting table, be
spections and corrective actions in the order listed.
sure all of the applicable operating checks have been
This manual cannot list all malfunction that may
performed.
occur, nor all tests or inspection and corrective ac-
Table 3-2. TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BURNER FAILS TO L I G H T
Step 1 check fuel level in tank.
Add fuel if needed.
Step 2 Check fuel lines for kinks or other damage
Report damaged fuel lines to organizational maintenance.
Step 3 Check fuel shut-off cock for location in open position.
Report defective cock to organizational maintenance.
Step 4 check tank fill cap valve for location in open position.
Report defective valve to organizational maintenance.
Step 5 check fuel filter for sediment.
Clean strainer.
Step 6 Check for defective control damper.
Report defective damper to organizational maintenance.
BURNER FLOW TOO LOW
Step 1 Check for bent or restricted fuel line.
Report defective line to organizational maintenance.
Step 2 Check fuel shut-off cock for operation or restriction.
Report defective cock to organizational maintenance.
tank fuel cap valve for operation or restriction.
Step 3 Check
Report defective valve to organizational maintenance.
Step 4 Check for defective temperature control valve.
Report defective valve to organizational maintenance.
Step 5 Check fuel filter for sediment.
Clean strainer.
BURNER FIRE TOO HIGH
Step 1 Check temperature control valve.
Report defective valve to organizational maintenance.
Step 2 Check Engine speed.
Report excessive engine speed to organizational maintenance.
EXCESS FUEL IN BURNER
check for correct lighting procedures
Close burner fuel line shut-off valve end run blower until excess fuel is evaporated.
