Teledyne Laars Cap Sensor/Pressure Switch with O-Ring, R0455400 In stock$5299
Teledyne Laars Cap Sensor/Pressure Switch with O-Ring, R0455400
$5299
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Quick overview
- Genuine Teledyne Laars Factory part number R0455400.
- O-ring included The sealing O-ring comes with the switch, so the port seals properly on reassembly.
- Heater part Listed by the manufacturer as a pool heater part.
- Listed for LXi Catalogued under Jandy Laars LXi heater parts, so confirm the part number against your model before ordering.
- A safety device Water pressure switches stop the heater firing without adequate flow, so a failed switch is not something to bypass.
- Replace the O-ring, do not reuse The supplied O-ring is there because a compressed old one leaks at the port.
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Cap Sensor/Pressure Switch with O-Ring, R0455400
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Product details
The Teledyne Laars R0455400 is a cap sensor and pressure switch supplied with its O-ring. It is the genuine Teledyne Laars part, catalogued under Jandy Laars LXi heater parts.
What it does
A water pressure switch is the heater interlock that confirms flow through the heat exchanger before the burner is allowed to light. It is a safety device, not a convenience. A heater that fires without adequate flow will damage its exchanger fast, which is why a switch that has failed should be replaced rather than jumpered around.
Before you order
The available information lists this part under Jandy Laars LXi heater parts without naming specific models. Check R0455400 against the parts list for your heater to be sure it is the right switch. When you fit it, use the O-ring that comes in the box rather than the old one, since a compressed O-ring is a common source of a slow weep at the port.
| Brand | Teledyne Laars |
|---|---|
| Manufacturer part number | R0455400 |
| UPC | 052337023184 |
| Part type | Pool heater part |
| Type | Cap sensor and pressure switch |
| Included | O-ring |
| Listed under | Jandy Laars LXi heater parts |
| Shipping weight | 0.44 lb |
| Ships | Parcel |
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Questions and answers
What people ask about this product, answered by our pool techs.
Does the O-ring come with it?
Yes. The switch is supplied with its O-ring.
Which heater does it fit?
The available information catalogues it under Jandy Laars LXi heater parts. It does not list model numbers, so check R0455400 against the parts list for your specific heater before ordering.
Is it a genuine part?
Yes. It is the Teledyne Laars factory part, number R0455400.
Why does a heater need a pressure switch?
It confirms there is water flow through the heat exchanger before the burner is allowed to fire. Firing a heater without flow damages the exchanger quickly, which is why a faulty switch should be replaced rather than jumpered out.
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