ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0034 00
TROUBLESHOOTING PROCEDURES
UNIT TROUBLESHOOTING PROCEDURES TACTICAL WATER
PURIFICATION SYSTEM (TWPS)
THIS SECTION COVERS:
Cold Weather System
INITIAL SETUP:
TWPS Set Up
Maintenance Level
Unit
COLD WEATHER SYSTEM MALFUNCTIONS
Table 13. Cold Weather System Troubleshooting.
ITEM
MALFUNCTION
POSSIBLE CAUSES
CORRECTIVE ACTION
1
Diesel heater motor does not
CB-137 is set to the OFF position.
Open PDP door and locate CB-137. Set
start at first start-up.
the CB to ON if in the OFF position.
Safety control locked out.
Push and hold red reset button for 120
seconds.
No power or low voltage at heater.
Check that the heater is plugged in.
Remote thermostat (if used) improperly
Adjust remote thermostat to a higher
set or defective.
setting. If heater still does not start, switch
the thermostat switch on the electric control
box to the "OFF" position. If the heater then
functions properly, replace the remote
thermostat assembly.
Fan obstructed by mechanical damage or
Check fan for dirt. Clean if needed. Check
dirt.
for bent or damaged fan blades. Replace
fan blades if damage found (WP 0064).
Dirty or defective photocell.
Clean the photocell if dirty. Test the
photocell and replace if defective.
Defective overheat switch.
Test the overheat switch and replace if
defective (WP 0064).
Defective Safety Control
Test the safety control and replace if
defective (WP 0064).
Defective motor relay.
Test the motor relay and replace if defective
Defective motor
Replace the motor (WP0064).
2
Heater will not ignite, but
Fuel tank empty.
Check level of fuel in tank. A minimum of
motor runs for a short time.
one gallon is required for proper operation.
Wrong fuel type.
Make sure fuel is one of the following: DF2,
DL2, or JP8.
Water in the fuel.
Check for water in the fuel tank. If water is
found, drain the tank and rinse with clean
fuel. Remove and rinse the fuel filter with
clean fuel (WP 0064). Fill the tank with
fresh, clean fuel.
0034 00-44
