Troubleshooting; Possible Cause; Corrective Action - Utilitech UT100USP Manual Del Usuario

tROuBleSHOOtinG

Risk of electrical shock, cuts, and possible unexpected starts. Can result in electrical
shock or pinching of hands or tools. If power to pump is on when thermal overload resets, pump may
start without warning. Disconnect power before servicing pump.
PROBlem
Motor will not run
Motor runs hot and
the overload kicks
off or does not run
and only hums
Motor runs but no
water is delivered*
* Stop pump; then check prime before looking for other causes. Unscrew priming plug and see if
water is in priming hole.

POSSiBle CauSe

1. Fuse is blown or circuit breaker
tripped
2. Voltage is too low
1. Fuse is blown or circuit breaker
tripped
2. Voltage is too low
During new installation, pump did not pick up prime through:
1. Improper priming
2. Air leaks
3. Leaking foot valve
4. Pipe size is too small
Pump in installation already in use has lost prime through:
1. Air leaks
2. Water level below suction pipe inlet
3. Impeller is plugged
4. Foot valve is stuck shut
5. Pipes are frozen
6. Foot valve and/or strainer are buried
in sand or mud

CORReCtiVe aCtiOn

1. DISCONNECT POWER; Replace
fuse or reset circuit breaker
2. Check voltage being supplied to
the pump
1. DISCONNECT POWER; Replace
fuse or reset circuit breaker
2. Check voltage being supplied to
the pump
1. Re-prime according to instructions
2. Check all connections on suction
line with shaving cream
3. Replace foot valve
4. Re-pipe using size of suction and
discharge ports on pump
1. Check all connections on suction
line and shaft seal with shaving
cream
2. Lower suction line into water and
re-prime. If receding water level in
well exceeds 25 ft. (7.6 m), a deep
well pump is needed
3. Clean impeller
4. Replace the foot valve
5. Thaw pipes
6. Raise the foot valve and/or strainer
above bottom of water source.
Clean foot valve and strainer
9
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