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MAINTENANCE
Troubleshooting
Troubleshooting
Problem
Electrical trouble
Draw-down protection
Pump fails to start
device has pump turned
off
Overload tripped
Clogged intake screen
Insufficient well yield
Worn pump
Pump fails to
deliver water or
Low voltage
reduced output
Incorrect rotation
(3-phase)
Pressure drop between
pressure switch and
tank
"Cut-in" or "Cut out"
pressure too high
Pump cycles too
Waterlogged pressure
frequently
tank
Electrodes of float-less
liquid level control too
close together
Tank too small
Overloads trip
Electrical trouble
Pressure switch
Pressure switch too far
cycles rapidly
from pressure tank
Backspin
Failed or no check valve Install new, non-swing type check valve(s).
Up-thrust
Check valve drilled
Lowest check valve
leaks or is more than 30
Water Hammer
ft above water
Check valve drilled
For technical assistance, parts, or repair, please contact:
888.885.9254 | redlionproducts.com
106720101 Rev. 003 01/23
Probable Causes
Corrective Action
Call dealer or electrician
Make sure system check valves are correctly installed or
uninstall draw-down protection device. Reset low pressure
cutoff switch (if installed).
Reset overloads and low pressure cutoff switch (if installed).
Clean intake screen.
Shut off system. Refer to
Replace pump.
Make sure the power supply corresponds with the electrical
rating of the motor. For 3-wire, single phase pumps, check
the control box.
Interchange any two leads at the magnetic starter.
Check system for a plumbing leak and correct as necessary.
Follow manufacturer's instructions to properly set the on/
off cycle of the pressure switch.
Follow manufacturer's instructions on resetting/establishing
proper air pressure setting for the tank.
Follow manufacturer's recommendation for installation of
the electrodes on the level control.
Install pressure tank with bonded diaphragm, air cell, or
water bag.
Call dealer or electrician.
Adjust air charge of tank to manufacturer's recommenda-
tions.
Install positive sealing check valves only.
Shut system down and contact pump installer to correct
issue.
Install positive sealing check valves only.
"Low-Yielding Well" on page
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