Allow concrete to cure, then remove forms.
4-4.1 Table 4-1 describes some problems which may occur with the submersible pump, with their possible cause,
procedure for checking, and method for correction.
Table 4-1. Troubleshooting
CAUSE OF TROUBLE
FUSES BLOW WHEN MOTOR STARTS
Using a voltmeter check the line
Check power source
terminals. Voltage must be with-
if voltage is incorrect.
in plus or minus 10% of nominal.
Check fuses for recommended size
Replace with proper
and check for loose, dirty or corr-
oded connections in the fuse recep-
Defective pressure Check voltage at contact points.
Replace pressure switch
Improper contact of switch points
or clean points.
can cause voltage less than line
Control box mal-
Check wiring against diagram in
Correct wrong wiring
control box. Check for loose
circuits. Press prong
connections. Control box-motor
connectors to assure
1. Wrong conn-
must match and be same as
Check relay coil with ohmmeter.
No movement of needle, if capa-
citor is good, indicates defective
relay point corntact.
Check resistance across capacitor
terminals with ohmmeter. Ohm-
meter needle should jump at once
when contact is made then move
up slowly. An open capacitor or
no current to the capacitor is in-
dicated when no movement occurs.
A shorted capacitor will not give
Locked rotor conditions can result
Sand bound pump can
from misalignment between pump
sometimes be corrected