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TM 5-4210-220-12
Table 4-2 UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5r
HOSE WILL NOT REWIND
Step 1.
Motor failed.
Replace motor, (see para. 4-14).
Step 2
Switch, relay, wire, harness plug or circuit breaker failed.
Replace failed component, (see para. 4-14).
Step 3
Motor chain broken.
Replace chain, (see para. 4-14).
6a
WINTERIZATION HEATER WILL NOT START
Step 1
Check if overheat fuse is blown.
Replace fuse as required.
Step 2
Check fuel tank level.
Fill fuel tank as required.
Step 3
Remove fuel line and check for fuel flow.
a
Clean fuel pump filter.
b
Replace fuel pump, (see para. 4-19).
c
Repair fuel hoses.
Step 4
Check fuel lines are connected right.
Connect fuel lines correctly.
Step 5
Check fuel nozzle for clogging.
Clean or replace nozzle, (see para. 4-19).
Step 6
Check for voltage on fuel solenoid.
If no voltage, replace control unit, (see para. 4-19).
Step 7
Listen or feel for click on solenoid when plugged and unplugged.
If no sound, or click replace solenoid, (see para. 4-19).
4-33
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