T M 1 0 - 4 6 1 0 - 2 3 2 - 12
Table 4-2. Unit Troubleshooting Guide (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
LEVEL SWITCHES.
1. HYPOCHLORITE TANK LOW LEVEL switch does not work (Reference Schematic Diagram FO-1, Sheet 9
schematic lines 920-921).
NOTE
Drain the chemical tank before troubleshooting.
Step 1. Remove connector P12 (Reference Interconnection Diagram FO-2, Sheet 15) from the control
panel. Check for 110-120 VAC across J12C and J12J (Reference Interconnection Diagram FO-2,
Sheet 9).
If voltage is not present, notify direct support maintenance.
Step 2. Check for continuity across P12C and P12.
(a) If the continuity check is okay, go to step 3.
(b) If there is no continuity, go to step 4.
Step 3. Use the chemical mixing paddle and lift the float in the chemical tank. Check for continuity across pins
P12C and P12D.
If the continuity check is okay, notify direct support maintenance to troubleshoot the main control
panel.
Step 4. Remove connector P52 from the alarm panel. Check for continuity across J52C and J52D with the
float set as in step 3. Let the float drop and check for continuity across J52C and J52E (Reference
interconnection Diagram FO-2, Sheet 15).
if both continuity checks are okay, replace the cable between P12 and P52 (para. 4-27).
Step 5. Refer to the electrical schematic Appx. l-1. Check continuity, point-to-point, from J52C to JS2E.
(a) Repair any hose or damaged wire (para. 4-31).
(b) Replace connector J52 if faulty (para. 4-31).
(c) Replace LSL4 if it shows an open circuit (para. 4-40.
with the float lifted as in step 3.
(a) Repair any hose or damaged wire (para. 4-31).
(b) Replace connector J52 if faulty (para. 4-31).
(c) Replace LSL4 if it shows an open circuit (para. 4-40).
2. HYPOCHLORITE TANK LOW LEVEL indicator tight or warning horn does not work (Reference Schematic Dia-
gram FO-1, Sheet 9, schematic line 923 and Schematic Diagram FO-1, Sheet 10, schematic line 1003). Refer
to light testing and alarm circuit troubleshooting for additional test procedures.
Notify direct support maintenance.
3. POLYELECTROLYTE TANK LOW LEVEL switch does not work (Reference Schematic Diagram FO-1, Sheet
9, schematic lines 923-924).
NOTE
Drain the polyelectrolyte tank before troubleshooting.
Step 1.
Step 2.
Step 3.
Step 4.
Remove connector P15 (Reference interconnection Diagram FO-2, Sheet 14) and P12 from the con-
trol panel. Check for 110-120 VAC across J15C and J1J2.
if voltage is not present, notify direct support maintenance.
Check for continuity across P15C and P15D. No power.
(a) If the continuity check is okay, go to step 3.
(b) If there is no continuity, go to step 4.
Use the chemical mixing paddle and lift the float in the chemical tank. Check for continuity across pins
P15C and P15F.
If the continuity check is okay, notify direct support maintenance to troubleshoot the main control
panel.
Remove connector P30 from the JB3 junction panel. Check for continuity across J30A and J30D with
the float set as in step 3. Let the float drop and check for continuity across J30A and J30B (Reference
interconnection Diagram FO-2, Sheet 14).
4 - 4 6 C h a n g e 1
Step 6. Refer to the electrical schematic Appx. l-1. Check for continuity, point-to-point, from J52C to J52C to J52D
