Overheating. For safety reasons, many pool pumps are designed to shut off automatically if they begin to overheat. The mechanisms that perform this task are known as thermal overload switches. If your pump continues to shut off, it could mean that the thermal overload switches are going bad.
In this way, do Hayward pool pumps run hot?
In this manner, how hot should a Hayward pool pump get?
How Hot Can a Pool Pump Motor Get? Anything above 115 degrees Fahrenheit is going to register as hot to the human touch. Motors can reach up to 200 degrees before bearings can begin to breakdown, so 115-200 degrees is a safe “hot” temperature for your motor.
How do you set thermal overload?
Thermal Overload Relay setting = 100% x Full Load Current (Line).
- Thermal Overload Relay setting = 100% x Full Load Current (Line).
- Thermal Overload Relay setting = 100%x6 = 6 Amp.
When set in the H or HAND position the RESET button must be pressed manually to reset the overload relay after a tripping event. On the other hand, when set in A or AUTO position, the overload relay will reset automatically after a tripping event.
Touch the leads on your digital multimeter to both sides of the thermal overload switch. Watch the needle on the digital multimeter display to determine if your thermal overload switch needs to be replaced. A functional thermal overload switch will cause the needle to move to “0”.
Signs You Need Pool Pump Replacement
- Rumbling Sounds. An excessively-vibrating pump motor can create these rumbling sounds. …
- Grinding or Screeching Sounds. …
- Blowing Bubbles and Spitting Water. …
- Old Age. …
- Get a New Pool Pump Now to Keep Enjoying Safe Water.
When a pump loses prime, or stops pulling the water to itself, this reduced or nonexistent flow of water causes the motor to run hot. If this happens for long enough, parts on the wet end (basket, trap, etc.) may warp and the motor is susceptible to burnout.
Why Does a Pool Pump Overheat and How Do I Fix It?
- Check Out Your Water Level.
- Clear Out All that Debris.
- Ahem. Check Your Wiring.
- Give Your Pump Room to Breathe.
- Make Sure Your Pump is the Right Size.
- Check Your Windings.
- Uh Oh. You Might Have Bad Bearings.
- Still Sizzling?
Several factors can cause a pump to draw too much current. Among those are the pump is operating at the far right hand of the pump curve; a mechanical issue such as bad bearings; a bad winding in the motor; or the pump is wired to the incorrect voltage.
Overload Protection Test:
- Measure the normal motor running current (i motor).
- Turn off the motor and let it cool for about 10 minutes.
- Calculate the following ratio: i (motor) / i (overload min FLA). …
- Set the overload to its minimum FLA and turn on the motor.
- Wait for the overload to trip.
The thermal overload relay is designed to protect the motor or other load from damage in the event of a short circuit, or being over-loaded and overheating. The simplest overload relay is activated by heat caused from high current flowing through the overload and over a bimetallic strip.
Thermal protectors generally reset themselves once the motor cools down to a safe operating temperature. There is usually a visible red button located on the wiring side of the motor—usually, though not always, located opposite of the motor shaft.
A thermal overload cools down faster than a motor, which can cause it to fail to trip if an overload happens in several stages. The dynamic thermal model in an electronic overload relay more accurately tracks motor temperature and will trip before damage occurs.