Troubleshooting Guide - Pentair Pool Products HIGH-RATE SAND FILTER SYSTEM Owner's Manual

TROUBLESHOOTING GUIDE –
PUMP
Read and understand safety and operating in-
structions in this manual before doing any
work on pump.
A. Pump does not operate:
1. Check GFCI (Ground Fault Circuit Interrupter) for
proper operation according to GFCI manufac-
turer's instructions.
2. Check for blown fuses, circuit breakers, or dis-
connected electrical wiring.
3. Check for sand locked impeller. Disconnect
power to motor; follow "Pump Disassembly" in-
structions, Page 12. Clean out sand from im-
peller and from wear ring in front plate.
Reassemble according to instructions, Page 12.
4. Consult dealer/installer or service representative.
B. Motor runs, but does not pump water or pressur-
ize system:
1. Check to make sure all valves are open.
2. Check skimmer, trap basket, and piping for de-
bris or obstructions.
3. Check pump impeller for obstructions such as
hair, leaves, grass, or stones. Follow "Pump
Disassembly" instructions, under "Pump Service"
on Page 12.
4. Consult with dealer/installer or service
representative.
C. Excessive air in system – pump loses prime:
1. Make sure water level in skimmer is at least 2"
above bottom of skimmer throat with system not
operating.
2. Make sure that there are no leaves in suction
piping.
3. Make sure there is no vortex (whirlpool) at the
suction; add water to pool if necessary.
4. Consult dealer/installer or service representative.
D. Circuit breaker in home panel trips repeatedly:
1. Breaker must be of adequate capacity.
2. If breaker is a GFCI breaker, test according to
GFCI manufacturer's instructions.
3. Be sure no other lights and appliances are on cir-
cuit.
4. Check wiring size leading to pump. Inadequate
size wiring will cause overheating of pump and
excessive amp draw leading to circuit breaker
tripping.
5. Consult dealer/installer or service representative
TROUBLESHOOTING GUIDE –
FILTER
A. Short Cycle between backwashes:
NOTICE: Time between backwashes will vary with
each installation and between different areas of the
country. Ask installer about normal backwash interval in
your area. The following causes and remedies are for
cycle times shorter than normal for your area.
1. Flow rate too high or filter too small; consult
dealer for system sizing recommendations.
2. Water is chemically out of balance; consult pool
serviceman.
3. Excess dirt/dust in pool; vacuum pool directly to
waste.
4. Body oil/lotion build-up in filter; consult dealer for
chemical filter cleaners and follow cleaner manu-
facturer's instructions.
5. Filter inadequately backwashed. See instructions
under "Startup/Operation", Page 8.
6. Algae in pool. Consult pool professional about
proper chemical maintenance.
7. Residual chlorine level too low. Consult pool pro-
fessional about proper chemical maintenance.
8. Inspect filter sand for solidification caused by
dust, calcium, skin oils, of suntan lotions.
B. Low Flow:
1. Pipe blocked downstream from filter; remove ob-
struction.
2. Piping too small; use larger pipe (consult dealer
for sizing).
3. Plugged pump; plugged hair and lint trap or skim-
mer basket. Clean thoroughly.
C. Pool Water Not Clear:
1. Water is chemically out of balance; consult pool
professional.
2. Filter is too small; consult dealer about equipment
sizing.
3. Sand in pool means broken lateral. Drain both
water and sand out of tank. Remove valve; follow
procedure under "Filter Setup", Page 6, and in-
structions with new lateral to replace broken part.
To avoid severe injury or major prop-
erty damage, follow instructions under 'Valve
Installation', Figures 6, 7 and 8, Pages 6, 7 and 8).
1. Follow "Valve Removal" procedure, Page 11.
2. Replace lateral according to instructions supplied
with new lateral.
3. Reassemble filter according to instructions under
"Filter Setup", Page 6
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