Troubleshooting Chart - Pentair MYERS PQP Serie Manual Del Propietário

SyMPtOM POSSiBlE caUSE(S)
Motor will not run Disconnect switch is off
Fuse is blown
Starting switch is defective
Wires at motor are loose,
disconnected, or wired incorrectly
Motor runs hot and Motor is wired incorrectly
overload kicks off
Voltage is too low
Motor runs but no *Pump in new installation did
water is delivered not pick up prime through:
1. Improper priming
2. Air leaks
3. Leaking foot valve
*(Note: Check
*Pump has lost prime through:
prime before
1. Air leaks
looking for other
2. Water level below suction of pump
causes. Unscrew
priming plug and
Impeller is plugged
see if there is
water in priming
Check valve or foot valve is stuck
hole.)
in closed position
Pipes are frozen
Foot valve and/or strainer are
buried in sand or mud
Pump does not Water level in well is lower than
deliver water to full estimated
capacity (Also
Steel piping (if used) is corroded or
check point 3
limed, causing excess friction
immediately above)
Offset piping is too small in size
Pump leaks Clamp loose
around clamp

troubleshooting chart

cOrrEctiVE actiON
Be sure switch is on
Replace fuse
Replace starting switch
Refer to instructions on wiring. Check and tighten all wiring.
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.
Refer to instructions on wiring
Check with power company. Install heavier wiring if wire size is too small
(See Electrical, Page 6)
In new installation:
1. Re-prime according to instructions
2. Check all connections on suction line
3. Replace foot valve
In installation already in use:
1. Check all connections on suction line and shaft seal
2. Lower suction line into water and re-prime. If receding water level
in well exceeds suction lift, a deep well pump is needed
Clean impeller; see Maintenance
Replace check valve or foot valve
Thaw pipes. Bury pipes below frost line. Heat pit or pump house.
Raise foot valve and/or strainer above well bottom
A deep well jet pump may be needed (over 20 ft. to water)
Replace with plastic pipe where possible, otherwise with new steel pipe
Use larger offset piping
STOP PUMP, tighten clamp nut 1-2 turns. Alternately tighten and tap on
clamp with mallet to seat O-Ring. Do not overtighten
14
capacitor voltage may be hazardous. to discharge