Installation Guide

ELECTRICAL GUIDE - 60 CYCLE MOTORS - SINGLE PHASE
MOTOR
VOLTS CIRCUIT BREAKER
RATINGS-AMPS
BRANCH FUSETRON
RATINGS-AMPS
RECOMMENDED
WIRE SIZE 0-50’
KW HP
.37
.55
.75
1.10
1.55
1.88
3/4
1
1-1/2
2
2-1/2
115
230
115
230
115
230
115
230
230
30
15
2020
30
12
No. 10
No. 14
No. 12
1/2
115
15 No. 14
No. 14
No. 14
No. 12
No. 14
No. 10
No. 14
15
10
15
15
6.25
20
9
30
15
20
10
15
10
TROUBLE SHOOTING GUIDE
A. MOTOR WON’T START
Check for improper or loose connections, open switches
or relays, blown circuit breakers or 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 motor
will automatically shut off, under normal conditions,
before heat damage build-up, due to an improper
operating condition, can occur. The motor will
auto-restart when safer heat level is reached.
C. MOTOR HUMS, BUT DOES NOT START—
Check for:
Governor stuck in open position.
Open capacitor.
D. PUMP WON’T PRIME
Make sure pump/strainer housing is filled with water
and that cover gasket is clean and properly seated.
Tighten hand knob.
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.
If pump does not develop a vacuum and pump has
sufficient “priming water”:
Tighten all bolts and fittings.
Check voltage to make sure pump is up to speed.
Open pump and check for clogging or obstruction.
Remove and replace shaft seal.
If pump develops a vacuum, check for blocked
suction line or strainer, or air leak in suction piping.
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.
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.
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© 1999 Hayward Printed in U.S.A.
Rev. 7/99 A