Little Or No Liquid Delivered By Pump - Xylem Goulds CentriPro Series Service Manual

Little or No Liquid Delivered by Pump

Probable Cause
1. Faulty or incorrectly installed
check valve
2. Pump air bound
3. Lift too high for pump
4. Pump bound by foreign
matter
5. Pump not fully submerged
6. Well contains excessive
amounts of air or gases
7. Excessive pump wear
8. Incorrect motor rotation
– 3Ø only.
10
Recommended Action
1. Inspect check valve, repair
as required
2. Successively start and
stop pump until flow is
delivered
3. Review unit performance,
check with dealer
4. Pull pump, clean, adjust set
depth as required
5. Check well recovery, lower
pump if possible
6. If successive starts and
stops does not remedy,
well contains excessive air
or gases
7. Pull pump and repair as
required
8. Reverse any two motor
electrical leads