TM 55-1930209-14&P-4
Table 4-1. Chlorination System Troubleshooting (Continued)
Problem
Probable Cause
Corrective Action
5
Drinking water not being
a.
Valve CU3 not properly
a.
Position valve CU3 to position B
supplied to chlorination unit
positioned
for circulating pump
b.
Circulating pump not operating
b.
Close power panel 1 circuit
breaker 9P5
c.
Valve CU4 closed
c.
Open valve CU4 fully
6.
Rapid scaling of cells
a.
Incoming water too hard
a.
Descale (paragraph 3-7)
7.
Makeup water not being
a.
Stuck solenoid valve
a.
Function switch to OFF/RESET,
supplied to brine tank and/or
then to AUTO.
Repeat if
holding tank
necessary. Replace solenoid if
necessary.
b.
Valve CU11 closed
b.
Open valve CU11 to tanks
c.
Flowmeter makeup valve not
c.
Open flowmeter makeup to
open to tanks
brine tank
d.
Scale or dirt in flowmeter
d.
Clean flowmeter
8.
Flowmeter ball fluctuates
a. Air in water supply lines
a.
Troubleshoot seawater
erratically
(TM 55-1930-209-14&P-2)
and drinking water system
(TM 55-1930-209-1 4&P-5)
b.
Scale or dirt in flowmeters
b.
Clean flowmeters
9.
Holding tank constantly low
a.
Withdrawal rate too high
a.
Use constant withdrawal mode
instead of bulk withdrawal
mode
b.
Stuck solenoid valve
b.
Function switch to OFF/RESET,
then to AUTO. Repeat if
necessary. Replace solenoid if
necessary
10. Flow restricted
a.
Valves not set properly
a. Open or close valves as
necessary
b.
Pipe blockage
b.
Clean out piping
11. Leaks in system
a.
Loose connections
a.
Tighten connection
b.
Damaged seals
b.
Replace seals, including valve
seals
c.
Valve damaged
c.
Repair or replace valve
12. Sump pump malfunctioning or
a.
Valve CU16 closed
a.
Open valve
not operating
b.
Sump pump or sump tank
b.
Troubleshoot pump and level
revel switch malfunctioning
switch
c.
Control cabinet fuse bad
c.
Replace fuse
4-3
