TM 9-4120-399-14
Solenoid Valve (L1).
b. Repair.
Repair is limited to replacement of coil.
c. Test.
(1) Using multimeter set on lowest OHMS scale, check for continuity between leads L1-
1 and L1-2. If continuity is not found, coil is open and must be replaced.
(2) Using multimeter set on lowest OHMS scale, check for continuity between each lead
and coil casing. If continuity is found between either lead and the casing, the coil is grounded
and must be replaced.
(3) If continuity checks are satisfactory, power up unit and turn mode selector to COOL
and temperature select to COOLER.
(4) Listen for a sharp click when the valve should change position.
(5) If a click is not heard, internal valve problems are indicated. Replace valve.
