Pentair Onga WaterSwitch WS1500200

Questions and Answers

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Matthew Pollard IIAug 3, 2025
Why is no water being delivered from my Pentair Onga WaterSwitch WS1500200 Controller pump?
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  Jessica GonzalesAug 3, 2025
  If your Pentair Controller pump isn't delivering water, several factors could be at play. First, check if the water tank is empty and wait for rain to replenish it. Ensure the outlet has power by checking the power supply, circuit breakers, and plug. A faulty level sensor might be the culprit, so inspect its installation and operation. If the pump has overheated, allow it to cool down. A blocked mesh filter can also prevent water delivery; in this case, switch off the power, isolate the water, remove the pump barrel union, and then inspect, clean, or replace the filter. Lastly, a worn pump may be the reason, requiring servicing by a qualified technician.
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aprilvargasAug 7, 2025
What to do if there is no water supply at all from my Pentair Onga WaterSwitch WS1500200 Controller?
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  caleb20Aug 8, 2025
  If you're experiencing a total lack of water supply with your Pentair Controller, start by verifying that the mains water valve is open. Check both the mains water and tank water piping for any blockages that might be obstructing the flow. If the incoming mains water pressure exceeds 1000kPa, install a pressure reduction valve to lower it. Inspect the mesh filters for blockages; if found, switch off the power, isolate the water, remove the pump barrel union, and clean or replace the filter. It's also possible that a worn pump is the cause, which would necessitate servicing by a qualified technician.
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Hannah TranAug 13, 2025
What to do if Pentair Onga WaterSwitch WS1500200 WaterSwitch has gone into ‘loss of prime’ mode?
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  uyoderAug 13, 2025
  If your Pentair Controller pump isn't delivering water and the WaterSwitch has entered ‘loss of prime’ mode, begin by checking if the valve on or between the tank and WaterSwitch inlet is closed; if so, open the gate valve and prime the pump, then reset the WaterSwitch. If the pump isn't primed, prime it and reset the WaterSwitch. Also, a blocked mesh filter could be the cause; to resolve this, switch off the power, isolate the water, remove the pump barrel union, and inspect, clean, or replace the filter.
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Mary SawyerAug 18, 2025
How to fix H O Informer showing 2 error on Pentair Onga WaterSwitch WS1500200?
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  andrewschultzAug 18, 2025
  If the H O Informer shows a '2 error' on your Pentair Controller, it could be due to incorrect pairing with the WaterSwitch or the H O Informer being out of range. To resolve pairing issues, switch off the power for 10 seconds, then turn it back on while holding down the manual reset on the WaterSwitch. Press the mode button on the Informer and wait for it to pair with the WaterSwitch. If it's an issue of range, position the H O Informer within a 2-meter range of the WaterSwitch and press the mode button.
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Ian WallerAug 23, 2025
Why does my Pentair Onga WaterSwitch WS1500200 Controller pump continually run?
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  Mary MasonAug 23, 2025
  If your Pentair Controller pump runs continually, it could be due to an airlock in the system. To resolve this, bleed the air from the system. Activate appliances or outlets sequentially, starting with the nearest and moving to the furthest. Repeat if necessary. If the problem persists, contact your dealer.
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Bryan StephensAug 27, 2025
What to do if there is no display on Pentair Onga WaterSwitch WS1500200 H O Informer 2?
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  Derek VaughanAug 27, 2025
  If there is no display on your Pentair Controller's H O Informer 2, it may be due to a flat battery or a faulty unit. Try replacing the battery and pair the Informer as per the owner's manual. If replacing the battery doesn't solve the issue, the H O Informer 2 may be faulty and require replacement.