TROUBLE SHOOTING GUIDE
A. MOTOR WON'T START
1. Check for improper or loose connections,
open switches or relays, blown circuit
breakers or 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
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 safe
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 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.
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 and
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 AND REPAIRS
Consult your local authorized Hayward dealer or service center.
No pumps or motors may be returned directly to the factory without the
express written authorization of Hayward Pool Products Canada, Inc.
ELECTRICAL GUIDE – 60 CYCLE MOTORS – SINGLE PHASE
MOTOR
HP KW
1 .75
1 1/2 1.12
VOLTS
Circuit Breaker
RATING – AMPS
RECOMMENDED
WIRE SIZE 0-50', 0-15m
115
20
20
No. 12
No. 12
115
