Jandy R0457001 pressure switch with siphon loop kit for JXi 200, 260 and 400 heatersJandy Pressure Switch with Siphon Loop Kit for Model 200/260/400 JXi Heaters, R0457001 In stock$6399
Jandy R0457001 pressure switch with siphon loop kit for JXi 200, 260 and 400 heaters
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Jandy Pressure Switch with Siphon Loop Kit for Model 200/260/400 JXi Heaters, R0457001

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$6399
In stock
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Quick overview

  • Genuine Jandy Factory part R0457001, the pressure switch and siphon loop supplied together as one kit.
  • Covers all three JXi sizes Listed for the Jandy JXi Model 200, Model 260 and Model 400 heaters.
  • Switch and loop together The siphon loop comes with the switch, so the water side of the job is done in one order.
  • Proves water flow The pressure switch is what tells the heater there is water moving before it will fire.
  • A common no fire cause A JXi that will not light with the pump running is often held off by a failed pressure switch.
  • Small parcel part A light assembly that ships by parcel and is a straightforward swap for a service tech.
Full description and specifications ↓

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Product details

The Jandy R0457001 is the pressure switch and siphon loop kit for the JXi Model 200, 260 and 400 pool heaters. Both pieces come in the one kit, so the water side of the repair is covered in a single order.

What the pressure switch does

A gas heater will not light until it knows water is moving through it. The pressure switch is the device that makes that call. When it closes, the control board is free to run the ignition sequence. When it fails or sticks open, the heater simply refuses to fire, even though the pump is running and the flow looks normal at the returns.

Before you swap it

A no fire fault can also come from a dirty filter, a closed valve or a starved suction line, so check flow first. If the water side is right and the heater still will not light, the switch is the next thing to look at. The siphon loop is included here because it is part of the same assembly.

Specifications
Brand Jandy
Manufacturer part number R0457001
UPC 052337068185
Type Pressure switch with siphon loop kit
Fits Jandy JXi Model 200, 260, 400 heaters
Shipping weight 1 lb
Ships Parcel

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Questions and answers

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

Which heaters does this kit fit?
The Jandy JXi Model 200, Model 260 and Model 400 pool heaters.
Is the siphon loop included?
Yes. R0457001 is the pressure switch together with the siphon loop kit, not the switch on its own.
Is this a genuine Jandy part?
Yes. It is the Jandy OEM kit, part number R0457001.
My JXi will not fire even with the pump running. Is this the part?
It is one of the first things to check. The pressure switch has to close before the heater will light, so a failed switch keeps a JXi off even when flow is fine. Confirm the filter is clean and the valves are open first, then look at the switch.
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