Hayward Power-Flo LX SP1575X15 - Page 4

Trouble Shooting Guide - de filter

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TROUBLE SHOOTING GUIDE A. MOTOR WON'T START 1. Check for improper or loose connections, open switches or relays, tripped circuit breakers or blown fuses. 2. Manually check rotation of motor shaft for free movement and lack of obstruction. B. MOTOR CUTS OUT-Check for: 1. Wiring, loose connections, etc. 2. Low voltage at motor (frequently caused by undersized wiring). 3. Binding and overload. (Amperage reading) NOTE: Your Hayward pump motor is equipped with Automatic Thermal Overload Protection. The thermal overload will shut the motor off under abnormal conditions before damage to motor occurs. The motor will auto-restart when safer heat level is reached. C. MOTOR HUMS, BUT DOES NOT START- Check for: 1. Centrifugal switch stuck in open position. 2. Binding of motor shaft. D. PUMP WON'T PRIME 1. Make sure pump/strainer housing is filled with water and that strainer cover O-ring is clean and properly seated. Make sure strainer cover is locked firmly in position. 2. Make sure all suction and discharge valves are open and unobstructed, and that pool water level is above all suction openings. 3. Block off suction as close to pump as possible and determine if pump will develop a vacuum. a. If pump develops a vacuum, check for blocked suction line or strainer, or air leak in suction piping. b. If pump does not develop a vacuum and pump has sufficient "priming water": 1. Tighten all bolts and fittings. 2. Check voltage to make sure pump is up to speed. 3. Open pump and check for clogging or obstruction. 4. Remove and replace shaft seal. E. LOW FLOW-Generally, check for: 1. Clogged or restricted strainer or suction line; undersized pool piping. 2. Plugged or restricted discharge line of filter (high discharge gauge reading). 3. Air leak in suction (bubbles issuing from return fittings). 4. Pump operating underspeed (low voltage). 5. Plugged or restricted impeller. F. NOISY PUMP-Check for: 1. Air leak in suction causing rumbling in pump. 2. Cavitation due to restricted or undersized suction line and unrestricted discharge lines. Correct suction condition or throttle discharge lines, if practical. 3. Vibration due to improper mounting, etc. 4. Foreign matter in pump housing. 5. Motor bearings made unserviceable by wear, rust, or continual overheating. SERVICE & REPAIRS Consult your local authorized Hayward Dealer or service center. No pumps or motors may be returned directly to the factory without the expressed written authorization of Hayward Pool Products, Inc. Rev. 5/00 A

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TROUBLE SHOOTING GUIDE
A. MOTOR WON’T START
Check for improper or loose connections, open
switches or relays, tripped circuit breakers or
blown fuses.
Manually check rotation of motor shaft for free
movement and lack of obstruction.
B. MOTOR CUTS OUT—Check for:
Wiring, loose connections, etc.
Low voltage at motor (frequently caused by
undersized wiring).
Binding and overload. (Amperage reading)
NOTE:
Your Hayward pump motor is equipped with
Automatic Thermal Overload Protection. The
thermal overload will shut the motor off under
abnormal conditions before damage to motor
occurs. The motor will auto-restart when safer
heat level is reached.
C. MOTOR HUMS, BUT DOES NOT START—
Check for:
Centrifugal switch stuck in open position.
Binding of motor shaft.
D. PUMP WON’T PRIME
Make sure pump/strainer housing is filled with
water and that strainer cover O-ring is clean and
properly seated. Make sure strainer cover is
locked firmly in position.
Make sure all suction and discharge valves are
open and unobstructed, and that pool water level
is above all suction openings.
Block off suction as close to pump as possible
and determine if pump will develop a vacuum.
1.
2.
1.
2.
3.
1.
2.
1.
2.
3.
If pump develops a vacuum, check for blocked
suction line or strainer, or air leak in suction
piping.
If pump does not develop a vacuum and pump
has sufficient “priming water”:
1. Tighten all bolts and fittings.
2. Check voltage to make sure pump is up to
speed.
3. Open pump and check for clogging or
obstruction.
4. Remove and replace shaft seal.
E. LOW FLOW—Generally, check for:
Clogged or restricted strainer or suction line;
undersized pool piping.
Plugged or restricted discharge line of filter (high
discharge gauge reading).
Air leak in suction (bubbles issuing from return
fittings).
Pump operating underspeed (low voltage).
Plugged or restricted impeller.
F. NOISY PUMP—Check for:
Air leak in suction causing rumbling in pump.
Cavitation due to restricted or undersized suction
line and unrestricted discharge lines. Correct
suction condition or throttle discharge lines, if
practical.
Vibration due to improper mounting, etc.
Foreign matter in pump housing.
Motor bearings made unserviceable by wear,
rust, or continual overheating.
a.
b.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
SERVICE & REPAIRS
Consult your local authorized Hayward Dealer or service center.
No pumps or motors may be returned directly to the factory without the
expressed written authorization of Hayward Pool Products, Inc.
Rev. 5/00 A