Craftsman 390.262454 - Manual (Page 10)

TROUBLESHOOTING CHART
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Motor will not run 1. Disconnect switch is off
2. Fuse is blown
3. Starting switch is defective
4. Wires at motor are loose,
disconnected, or wired incorrectly
1. Be sure switch is on
2. Replace fuse
3. Replace starting switch
4. Refer to instructions on wiring. Check and tighten all wiring.
A WARNING Capacitor voltage may be hazardous. To discharge
capacitor, hold insulated handle screwdriver BY THE HANDLE
and short capacitor terminals together. Do not touch metal
screwdriver blade or capacitor terminals. If In doubt, consult a
qualified electrician.
Motor runs hot and
overload kicks off 1. Motor is wired incorrectly
2. Voltage is too low
1. Refer to instructions on wiring
2. Check with power company. Install heavier wiring if wire
size is too small (See Electrical, Pages 5 and 6)
Motor runs but no
water is delivered
*{Note: Check
prime before look­
ing for other
causes. Unscrew
priming plug and
see if there is
water in priming
hole.)
*1. Pump in new installation did
not pick up prime through:
a. Improper priming
b. Air leaks
c. Leaking foot valve
*2. Pump has lost prime through:
a. Air leaks
b. Water level below suction
of pump
3. Impeller is plugged
4. Check valve or foot valve is stuck
in closed position
5. Pipes are frozen
6 . Foot valve and/or strainer are
buried in sand or mud
1. In new installation:
a. Re-prime according to instructions
b. Check all connections on suction line
c. Replace foot valve
2 . In installation already in use:
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; see Maintenance
4. Replace check valve or foot valve
5. Thaw pipes. Bury pipes below frost line. Heat pit or pump house.
6 . Raise foot valve and/or strainer above well bottom
Pump does not
deliver water to full
capacity (Also
check point 3
immediately above)
1. Water level in well is lower than
estimated
2. Steel piping (if used) is corroded or
limed, causing excess friction
3. Offset piping is too small in size
1. A deep well jet pump may be needed (over 20 ft. to water)
2. Replace with plastic pipe where possible, otherwise with new
steel pipe
3. Use larger offset piping
Pump leaks
around clamp
1. Clamp loose 1. STOP PUMP, tighten clamp nut 1 -2 turns. Alternately tighten nut and
and tap clamp with mallet to seat O-Ring. Do not overtighten
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