Hayward SP2705EV81 Guide De L'utilisateur page 13

A) The motor does not start
1. Check the electrical connections, switches or relays, and the circuit breaker or fuses.
2. Ensure that the motor turns freely by hand.
B) The motor stops, check
1. The cables, connections, relays etc.
2. Voltage drop on motor (frequently caused by cables that are too small).
3. That there is no seizing or overheating (by reading the absorbed current).
N.B.: The motor on your pump is fitted with a thermal protection which, in the case of overload, will automatically cut the
circuit and avoid the motor being damaged. This triggering is caused by abnormal usage conditions which need to be
checked and corrected. The motor will restart without any intervention as soon as normal operating conditions are restored.
C) The motor growls but does not start, check that a phase is not cut, the capacitor is not damaged.
D) The pump does not prime
1. Ensure the strainer housing is filled with water, that the cover seal is clean and correctly positioned and that no air can
enter. If necessary, tighten the cover lock screws.
2. Ensure that all the suction and discharge valves are open and not blocked and that the suction outlets in the pool are
fully submerged.
3. Check that the pump draws by freeing the suction as close as possible to the pump:
a) if the pump does not draw despite being sufficiently full of priming water
1. Tighten the bolts and pipe accessories on the suction side.
2. Check the voltage to ensure that the pump is rotating at the correct speed.
3. Open the pump and check that nothing is blocking it inside,
4. Replace the mechanical shutter.
b) If the pump is drawing normally, check the suction pipe and strainer which may be blocked or be allowing air to enter.
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 under speed (low voltage).
5. Plugged or restricted impeller.
F) Noisy pump, check
1. That no air is entering the suction side and causing dull crackling in the pump.
2. That there is no cavitation caused by insufficient diameter or a restriction in the suction tube. An over-sized discharge
pipe can also cause cavitation. Use pipes of the correct size or purge the pipes if necessary.
3. That no vibration is occurring due to incorrect fitting.
4. That there are no foreign bodies in the pump housing.
5. That the motor bearings have not seized due to excessive clearance, rust or prolonged overheating.
Page 6 of 6
TROUBLESHOOTING
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pump Rev. H