Sand Filtration System (ST1100 & ST1600) Troubleshooting

Updated

PROBLEM	CAUSE	POSSIBLE SOLUTION
The Pump motor fails to start	The Pump not plugged in OR the GFCI Power Cord Set not activated	The GFCI Set must be plugged into a grounded power outlet. Then press the RESET button to start the Pump.
	Low voltage	Check and make sure the line voltage is between 105 AC and 125 AC.
	The GFCI Power Cord Set and/or circuit breaker tripped	Reset the circuit breaker. If problem persists, have the circuit checked by a qualified electrician.
	The Pump motor is too hot, and the thermal safety switch shut it off	Let the motor cool down and restart the Pump.
The Sand Filter doesn't clean the pool	Inadequate chlorine or pH level A. Adjust	Adjust the chlorine and pH levels. Consult your local pool supplies stores.
	No sand in the Sand Tank	Fill sand in as per SETUP INSTRUCTIONS (8)-(10) on p. 10-11
	Wrong 6-Port Valve 10 setting	Set the Valve Handle 20 to “FILTER” position.
	The pool is too dirty	Run the Pump longer.
	Clogged Suction Fitting	Clean the strainer of the Suction Fitting.
The Sand Filter doesn”t pump water, or the flow is very slow	Clogged Suction Fitting or inlet of the Pump	Clean the Suction Fitting and the Hose 13 connecting it to the Pump inlet.
	An air leak on the intake Hose	Check the Hose for damage; tighten the Hose Clamps 15, and check the pool water level.
	The sand is too dirty	Backwash the sand more frequently.
	Crusting or caking of sand surface	Replace about 1” (25mm) of the sand, or all the sand if problem persists.
	A pool vacuuming device is attached to the Pump	Remove the device.
The Pump doesn”t work	Low water level	Fill water up to the FILL LINE marked on the pool wall.
	Clogged Suction Fitting strainer	Clean the strainer.
	An air leak on the intake Hose	Check the Hose for damage; tighten the Hose Clamps 15 , and check the pool water level.
	Faulty motor or the impeller is jammed	Contact our Customer Service.
The 6-Port Valve 10 or its locking ring is leaking	The 6-Port Valve O-Ring 9 is missing	Remove the 6-Port Valve 10 and check to ensure the O-Ring is in place.
	The 6-Port Valve O-Ring 9 is dirty	Clean the O-Ring with garden hose water.
	Loose Hose Clamps	Tighten/reinstall the Clamps.
	Faulty 6-Port Valve	Contact our Customer Service.
Leakage at Hoses	Loose Hose Clamps	Tighten/reinstall the Clamps.
Leakage at Hoses	The O-Rings of Hose connections are missing	Ensure that the O-Rings are in place and intact.
Pressure Gauge doesn”t work	Clogged inlet of the Pressure Gauge	Unscrew and remove the Gauge, then clear any obstructions in its inlet.
Pressure Gauge doesn”t work	Faulty Pressure Gauge	Contact our Customer Service.
Sand ended up in the pool	The sand is too small for the Pump	Use only #20 grade silica sand with particle size range 0.45-0.85 mm (0.018-0.033 inches) and uniformity coefficient less than 1.75
Sand ended up in the pool	The sand bed is calcified	Discard all the used sand and replace with new sand.

Useful Tips

Symptom 1: Water is leaking from the top of 6 port valve near the valve handle:

Check to see that the O-ring is inserted correctly on the inner lip of the 6-port valve cavity. This usually comes pre-assembled loosely.
Unscrew the dark grey threaded locking ring that is holding down the 6 Port Valve handle (#20) to the top of the 6 Port valve (#10). Please remove the ring entirely.
Lift the 6 port valve handle (lighter grey)(#20) up and out of the 6 port valve (darker grey) (#10).
Check that the large O-ring is seated properly inside the opening of the 6 port valve.
When replacing the 6 Port valve handle, please make sure that you properly align the notch on the handle portion (lighter grey), with the groove in the 6 Port Valve (darker grey). Check that it is seated correctly, as the notch will allow the handle to create a tight seal on top of the O-ring.
Once this is properly aligned and seated; thread the locking ring back over the 6 Port valve handle being careful not to cross thread the locking ring when tightening.
Place this entire 6 port Valve unit back on the Sand Filtration System tank, making sure the bottom Large O-ring is in place before you attach them together with the clamp.

If the previous steps do not resolve the problem, please contact Polygroup customer care at 1-888-919-0070 for a solution. You can buy spare parts by phone or at our online store.

Symptom 2: Pump will not start or stayon and may turn off suddenly on its own.

Hold down the button ”test” If you have a GFCI for 30 seconds, then release the button. Press the reset button to start the pump.
Check another appliance or small device, such as a hair dryer. If that doesn't work, the problem is not with the pump and the client should reset their circuit breaker. If the problem persists, call an electrician to check the circuit.
Is the pump hot? Pumps are protected by thermal overload. If the pump gets too hot, the circuit opens and the pump will stop operating until it cools. Please check in the operating timeshere. For best results, run the pump at night when the temperature is lower.

If the previous steps do not resolve the problem, please contact Polygroup customer care at 1-888-919-0070 for a solution. You can buy spare parts by phone or at our online store.

Symptom 3: There is no water flow or slow water flow:

Check for obstructions at all sites of the hose. You can also look inside hose for debris.
Check to see as air can be trapped inside the hoses. Be sure to backwash the sand before using the pump to clean the pool water.Fix and inspect hoses to prevent captured air pockets.

If the previous steps do not resolve the problem, please contact Polygroup customer care at 1-888-919-0070 for a solution. You can buy spare parts by phone or at our online store.

Symptom 4: Pump is not cleaning the pool (Murky or green tinted water):

Make sure you have the valve set to “filter” position.
Ensure you have sufficient amount of sand in the canister.
Check for obstructions at all sites of the hoses and strainer at the pool outlet fitting.
Use a chemical substance float device to release and ensure chemical are being released when the pump is not running. Apply to the pool on a regular basis.
Be sure to NOT use the swimming pool cover when the outside temperature too hot. The covered pool will become hot and will create algae.

If the previous steps do not resolve the problem, please contact Polygroup customer care at 1-888-919-0070 for a solution. You can buy spare parts by phone or at our online store.