When the pool pump starts and stops constantly, it is a clear sign that something is wrong with the filtration system. This behavior, in addition to preventing proper water cleaning, can cause serious damage to the engine if not corrected in time.
As professionals in pool pump maintenance and sales, we explain why this problem occurs, how to identify the exact cause and when to repair it or replace it directly with a new, more efficient and reliable pump.
In most cases, the motor protection system is acting to prevent further damage. Ignoring this problem may end up burning the motor or irreversibly damaging internal components.
It is the most frequent cause. When the motor overheats, the thermal protector shuts off the power to prevent damage. After cooling down, it starts up again… and the cycle repeats itself.
The most common reasons for overheating are:
The professional solution we recommend is to clean the prefilter and filter, check the turbine, improve the ventilation of the house and verify that the pump is always primed.
If the problem of the pool pump starting and stopping persists, the motor may be deteriorated.
When the pump does not receive enough water, it works forced, heats up and stops. This can be caused by low water level, air in the installation (we explain how to remove air from the pool pump), poorly sealed prefilter cover, deteriorated o-ring or partially closed valves.
The solution we recommend is:
The capacitor is responsible for providing the initial impulse to the motor. When it fails, the pool pump starts and stops because it heats up quickly.
This problem is very common in pumps with several years of use. The solution would consist of:
An unstable power supply can cause constant stoppages. Possible causes include a deteriorated plug or base, cable in poor condition, faulty differential or circuit breaker and incorrect voltage (especially in three-phase pumps).
As a solution, we recommend:
Over the years, the bearings wear out, the shaft rotates with difficulty and the motor needs more effort to start. Therefore, the pool pump starts and stops.
In these cases, repair is often costly and uneconomical. If the pump is more than 8 years old, it is most efficient to replace it with a modern model, thus improving the pool pump consumption.
Depending on the size and type of pool, ESPA pool pumps are a very reliable choice:
Learn more in our guide on which pool pump you need.
Usually because the motor overheats and the thermal protection cuts off the current. It is usually due to dirt, lack of water, poor ventilation or engine wear.
Yes. This operation can damage the motor, capacitor and bearings, resulting in a more serious and costly failure.
Yes. A defective capacitor causes hard starts and fast stops. It is very common in pumps that are several years old.
Yes. A saturated filter causes the pump to run forced, heat up and stop for thermal protection.
Yes. A bad connection, incorrect voltage or faulty protections can cause intermittent shutdowns.
When the pump is more than 8 years old, the problem is recurrent or the repair cost is close to the price of a new one.
PoolComet choice
Select options
This product has multiple variants. The options may be chosen on the product page
Discover how biofilm formation affects pools and jacuzzis, how to prevent it and how to eliminate it.
We analyze statistical data to clarify whether swimming pools are a problem for water shortage and drought. Read our article here.
Phosphates and swimming pool. Discover one of the most common and least known problems in pool maintenance.
Seleccionar categoria
