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Thread: Jandy LX Heater - Unreliable Heater

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    Join Date
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    Toronto, Ontario, Canada
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    Jandy LX Heater - Unreliable Heater

    I would like to go on record as saying the Jandy LX heater for us has been a terrible purchase. It has proven to be unreliable, complex to diagnose, and expensive to fix even if purchasing parts and self-performing the repair. In the 9 years we have suffered with this abject piece of junk we have replaced the blower twice, the air flow switch twice, fuses, and the flue. Iíve probably spent almost as much on parts and some labour as the unit originally cost. It is an absolute piece of garbage.

    I also understand that service guys are not fond of this unit because itís a pain to diagnose. I look at the threads on here with pool owners having to do voltage tests, jumping switches, scratching their heads, spending time on discussion boards looking for someone with a similar experience and hopefully a solution. Maybe Iím crazy, but it seems like a lot of us Jandy LX heater owners have been spending way too much time hovered over this hunk of junk rather than enjoying our pools.

    Too much of my precious downtime has been spent dealing with this boat anchor. Next pool season, Iím shipping this off to the trash heap and going to a more reliable heater from a different manufacturer.
    Inground Pool - Vinyl Liner - 74,000 litres installed 2007
    Jandy Aqualink with PDA 4
    Jandy LX250 Heater, Hayward Tristar Pump
    Zodiac Nature2 Duoclear, Hayward Sand Filter

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    wjr75's Avatar
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    Jun 2013
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    IL
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    Re: Jandy LX Heater - Unreliable Heater

    Get a Raypak
    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
    Heater Raypak 2100 400k btu cupro-nickel exchanger
    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

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    Re: Jandy LX Heater - Unreliable Heater

    Yes get a Raypak times 1000. A far better unit. I have been using them for a very long time and they have always proved to be a reliable unit.
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

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    Toronto, ON
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    Re: Jandy LX Heater - Unreliable Heater

    Are there any heaters that are inexpensive to control from a Smart Phone? I would find it hugely valuable to be able to remotely adjust the heater temperature (and also pool pump timer) from my phone but adding this functionality often costs you a premium of $1000 or more which seems kind of crazy when you figure the price of home automation devices like a Nest or SmartThings or whatever.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

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    TFP Guide

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    Re: Jandy LX Heater - Unreliable Heater

    I will echo what Paul said with this added. Most of the rust inside heaters is not from the elements per-se, but is from running the heater when the water is too cold. This causes a lot of condensation inside the unit. Southern climates don't see this as much as the water temps down there don't get as cold as they do in the north. The colder water temps (lower than 50-55 deg F)cause enough condensation that you would think there is a water leak inside the heater. Even a Raypac heater will suffer from this corrosion. Also to keep in mind, a lot of the components such as blower fans are not made by the heater manufacturer, but are made by a third party that supplies them to all of the manufacturers. Any heater, with proper care and use, will last a long time. I will agree that some are easier to work on than others, but with good trouble shooting skills and the ability to understand the workings of these things they can all be repaired fairly easily.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: Jandy LX Heater - Unreliable Heater

    Quote Originally Posted by wayner View Post
    Are there any heaters that are inexpensive to control from a Smart Phone? I would find it hugely valuable to be able to remotely adjust the heater temperature (and also pool pump timer) from my phone but adding this functionality often costs you a premium of $1000 or more which seems kind of crazy when you figure the price of home automation devices like a Nest or SmartThings or whatever.
    You need to buy and install an automation system to control the heater and other pool components via your smart phone.
    Paul
    http://www.gastekservices.com A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

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    Re: Jandy LX Heater - Unreliable Heater

    Why don't they just put wifi and web UI capabilities on a pool heater - just like a Nest thermostat? You can buy products, like webcams, for well under $100 that have web UIs (or can be controlled with apps) that have wifi and/or Ethernet connectivity. My irrigation controller has these capabilities. It isn't rocket science these days. And it is ridiculous to have to pay $500 or more to add this functionality.

    I do have a Control4 HA system but the pool interfaces are apparently very expensive and not very good in terms of functionality.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

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