By Jandy



Model # LXI400N

Alternate Part #'s 342376, JDYLXI400N, LAR-15-802

Product Description

LXi — The Next Generation in Heating Technology

Integrating the most advanced features in every aspect — from superior hydraulic design, lightest and strongest composite material construction — to a technologically innovative control system, the LXi brings the future of heating comfort to your pool.

The feature rich control panel has a user-friendlybacklit display. Built-in one-touch automation makes pool-to-spa switching simple. Freeze protection
and Jandy’s exclusive Maintain Temp Function* are just a few of the many features that bring complete control and comfort to your pool and spa today.

More Comfort with Jandy Technology

The LXi advanced digital control system is your key to comfort. Built-in automation makes pool/spa switching simple. Additional control panels can be added for ultimate convenience in the home, pool house or at the equipment pad.

Jandy’s new LXi is the easiest heater to install. The LXi is 33% lighter, with a 15% smaller footprint.

The LXi header improves entire circulation system efficiency. Offset plumbing and 2” universal unions provide added flexibility for simplified, direct connections.


Low NOx, fan-assisted combustion and Hot Surface Ignition System provides maximum performance.

Multiple venting options including sidewall, top or rear connections.

High efficiency C-Fin heat exchanger is designed for lower operating cost and greater savings.

Product Specifications

400,000 BTU

?     Asked on 1/16/2012by Guest

Will a gas heater operate at the low speed of a dual speed motor?

A  Answered on 1/16/2012 by InyoPools Product Specialist Patrick P.

Probably not - Most gas heater will shut off at low GPM levels (20-40) to keep the heater cores from overheating - 20 for 200 BTUs, 40 for 400 BTUs. Depending on your pool system you might get these GPM levels at the low speed but generally these heaters must be run at the motor's high speed.

?     Asked on 11/1/2014by john

I have a Jandy Aqualink RS6 controller. Is this compatible?

A  Answered on 11/3/2014 by InyoPools Product Specialist Robert M.

Hello John - Yes, model LXI400N is compatible with the Jandy RS6 Control.

?     Asked on 3/11/2015by Joyce

Can you tell me if this will work for a 16'x75' 38,000 gallon water pool?

A  Answered on 3/11/2015 by InyoPools Product Specialist Wes B.

Yes that heater will adequately suit your pool.

?     Asked on 7/4/2015by Robert LeRoy

Which models work with Saltwater pools? And which model would be best and why?

A  Answered on 7/4/2015 by InyoPools Product Specialist Patrick P.

Hi Robert, For a salt pool we would suggest a heater with a Cupro Nickel Heat Exachanger as the Cupro Nickel Heat Exchanger is designed to withstand the rigorous demands of a salt pool. I like the Raypak Cupro Nickel Heaters as they have been a great heater for us with few issues.

?     Asked on 9/9/2016by Jim

I have a 12 yr old Laars Lite 2 heater for my 100 gallon in ground spa. recently it will not ignite. I had the gas man come by and he noted that the wire going to the igniter (that opens the gas line to the burners) has no electricity flowing. All the other wires around it have electricity flowing. I cannot find a local pool company that works on this heater. Can you refer me to a local service? Bakersfield, CA or if it is a simple fix, advise me on what I need to do to repair it?

A  Answered on 9/9/2016 by InyoPools Product Specialist Scott W.

It would be the ignitor, part number 6200-241, that needs replacing. As far as installers, I would go with a pool contractor or an electrician.