Xylem IM126R02 E-Z Prime Jet Pump Shallow Well Jet Pump - Manual (Page 8)

8
Cause of Trouble How to Check How to Correct
1. Leak in pressure tank. Apply soapy water to entire surface
above water line. If bubbles appear,
air is leaking from tank.
Repair leaks or replace tank.
2. Defective air volume control. This will lead to a waterlogged tank.
Make sure control is operating
properly. If not, remove and examine
for plugging.
Clean or replace defective control.
3. Faulty pressure switch. Check switch setting. Examine switch
contact for dirt or excessive wear.
Adjust switch settings. Clean contact
with emery cloth if dirty.
4. Leak on discharge side of
system.
Make sure all fixtures in plumbing
system are shut off. Then check all
units (expecially ballcocks) for leaks.
Listen for noise of water running.
Repair leaks as necessary.
5. Leak on suction side of system. On shallow well units, install pressure
gauge on suction side.
Close the discharge line valve. Then,
using a bicycle pump or air
compressor, apply about 30 psi
pressure to the sytem. If the system
will not hold this pressure when the
compressor is shut off, there is a leak
on the suction side.
Make sure above ground connections
are tight, then repeat test. If
necessary, pull piping and repair leak.
6. Leak in foot valve. Pull piping and examine foot valve. Repair or replace defective valve.
Cause of Trouble How to Check How to Correct
1. Wrong pressure switch setting
or setting "drift".
Lower switch setting. If pump shuts
off, this was the trouble.
Adjust switch to preopen setting.
2. Defective pressure switch. Arcing may have caused switch
contact to "weld" together in closed
position. Examine points and other
parts of switch for defects.
Replace switch if defective.
3. Tubing to pressure switch
plugged.
Remove tubing and blow through it. Clean or replace if plugged.
4. Loss of prime. When no water is delivered, check
prime of pump and well piping.
Re-prime if necessary.
5. Low well level. Check well depth against
performance to make sure pump
and injector are properly sized.
If undersized, replace pump or
ejector.
6. Plugged injector or ejector. Remove and inspect. Clean and reinstall if dirty.
C. PUMP WILL NOT SHUT OFF
D. PUMP STARTS AND STOPS TOO OFTEN