TM 10-4610-310-14
UNIT MAINTENANCE
LIGHTWEIGHT WATER PURIFIER
TROUBLESHOOTING PROCEDURES
CONTROL MODULE
SURGE PROTECTORS
GENERAL
This work package lists the common malfunctions that you may find during the operation or maintenance of the
immersion heater indicator light on the control module used on the Lightweight Water Purifier (LWP). You should
perform the tests/inspections and corrective action in the order listed.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
MALFUNCTION
TEST/INSPECTION
CORRECTIVE ACTION
Tighten any loose connection and
Inspect for loose connections
replace wire if damaged.
Fault light is on - any surge
protector
Turn the power off and then
If problem still persists replace the surge
back on
protector.
Surge Protector (SP6)
Ensure the heater switch is on.
If the voltage is present at the inlet and
Measure the voltage at the inlet
not the outlet, replace the surge
(across wires 77 and 76) and at
protector.
the outlet (across wires 100 and
98) for 240 VAC.
Surge Protector (SP 7 through
With power off, measure the
Replace surge protector if continuity is
21)
continuity between terminal 1
not present. WP 0102 00.
and 3 and terminal 2 and 4.
0072 00-1
