Hayward HAXPSA1930 water pressure switch assembly for H-Series heatersHayward Water Pressure Switch Assembly, HAXPSA1930 In stock$9299
Hayward HAXPSA1930 water pressure switch assembly for H-Series heaters
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Hayward Water Pressure Switch Assembly, HAXPSA1930

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$9299
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Quick overview

  • Genuine Hayward Factory part HAXPSA1930, supplied as a complete assembly.
  • H-Series heaters Listed as the pressure switch assembly for the H-Series range.
  • Also listed for ComforZone Covered in the CPS and CPSE 520 to 1820 parts group and the ED2 electronic H-Series 150 to 400.
  • Proves water flow The burner is not allowed to light until this switch sees pressure from the pump.
  • A common no fire cause A failed switch reads as no flow, so the heater refuses to start even with the pump running.
  • Complete assembly Comes as an assembly rather than a bare switch body.
Full description and specifications ↓

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Product details

The Hayward HAXPSA1930 is the water pressure switch assembly for H-Series heaters. It is the genuine Hayward part and it is supplied as a complete assembly.

What it is protecting

A gas heater must never fire without water moving through the heat exchanger. The pressure switch is the device that proves that flow. It sits in the water path and closes when the pump develops enough pressure, and only then will the ignition control allow the burner to light.

Diagnosing it

A heater that will not fire while the pump runs points here, but the switch is often blamed for a problem upstream. Check the filter pressure, the valve positions and the flow rate first, because a dirty filter or a partly closed valve gives exactly the same result. If flow is genuinely good and the switch still will not close, the assembly is the replacement.

Specifications
Brand Hayward
Manufacturer part number HAXPSA1930
UPC 610377625807
Part type Pool heater part
Type Water pressure switch assembly
Fits Hayward H-Series heaters, ComforZone CPS and CPSE 520 to 1820, H-Series ED2 electronic 150 to 400
Shipping weight 0.2 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What does the water pressure switch do?
It confirms that water is actually moving through the heater. Until it closes, the control will not let the burner light, which is what stops the heat exchanger being fired dry.
Which heaters is it listed for?
Hayward H-Series heaters, along with the ComforZone CPS and CPSE 520 to 1820 and the ED2 electronic H-Series 150 to 400 parts groups.
My heater will not fire but the pump is running, is this the part?
It is one of the first things to check. Low flow, a dirty filter or a closed valve produce the same symptom, so confirm real flow through the heater before condemning the switch.
Is this the whole assembly?
Yes. Hayward supplies HAXPSA1930 as a pressure switch assembly.
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