Troubleshooting Chart - Wayne JSU50 Operating Instructions And Parts Manual

Operating Instructions and Parts Manual

Troubleshooting Chart

Symptom Possible Cause(s)
Motor will not run 1. Power off
2. Fuse is blown (Breaker tripped)
3. Wires at pressure switch are loose,
4. Faulty pressure switch
5. Motor thermal overload tripped
Motor runs hot and 1. Pressure switch is wired incorrectly
overload kicks off 2. Voltage is too low
3. Rapid cycling
4. High surrounding temperature
Motor hums but will 1. Motor is wired incorrectly
not run 2. Voltage is too low
3. Rotor is stuck
Motor runs but little or 1. Pump in new installation did not
no water is delivered.
NOTE: Check prime
before looking for
other causes. Unscrew
priming plug and see if 2. Pump has lost prime through:
water is in priming
hole
3. Impeller is plugged
4. Check valve or foot valve is stuck in
5. Pipes are frozen
6. Foot valve and/or strainer are buried
Pump starts and stops 1. Water-logged tank (Conventional
too often
2. Ruptured diaphragm or bladder
3. Air volume control connected to
4. Incorrect tank pre-charge (Pre-
5. Leak in system or house piping
6. Foot valve or check valve stuck
7. Improperly adjusted pressure
www.waynepumps.com
disconnected, or wired incorrectly
pick up prime through:
a. Improper priming
b. Air leaks
c. Leaking foot valve
a. air leaks
b. water level below suction of
pump
closed position
in sand or mud
tank)
(Pre-charged tank)
wrong opening on pump
charged tank)
open
switch
Corrective Action
1. Turn power on or call power company
2. Replace fuse (Reset breaker)
3. Refer to wiring instructions. Check and tighten all wiring
4. Replace switch
5. Let cool. Overload will automatically reset. Provide a shaded, well venti-
lated area for pump
1. Refer to wiring instructions
2. Check line voltage. Install heavier wiring if wire size is too small (See
wiring chart, page 5). Check with power company
3. Check switch. Ensure tank is not water-logged
4. Provide a shaded, well ventilated area for pump
1. Refer to wiring instructions
2. Check line voltage. Install heavier wiring if wire size is too small (See
wiring chart, page 5). Check with power company
3. Disconnect power, rotate motor shaft with flat blade screwdriver insert-
ed in the end of the shaft
1. New installation:
a. Re-prime according to instructions
b. Check all connections on suction line
c. Replace foot valve
2. Existing installations:
a. Check all connections on suction line and shaft seal
b. Lower suction line into water and re-prime. If receding water level in
well exceeds suction lift, a deep well pump is needed
3. Clean impeller
4. Replace check valve or foot valve
5. Thaw pipes. Bury pipe below frost line. Heat pit or pump house
6. Raise foot valve and/or strainer above well bottom
1. Follow instructions in maintenance section
2. Replace tank
3. Move to correct pump opening
4. Add or release air as needed
5. Locate and repair leak
6. Replace valve
7. Adjust or replace switch
6
JSU50