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Teledyne laars pool heater wont kick on

Pilot light is lit, vacuumed out spider webs, heater wont kick on...

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  • Anonymous May 30, 2008

    laars heater piliot on main vale doesnt come on

  • Schrades Jun 01, 2008

    Pilot is lit , pump running but burner won't light up?

  • Anonymous Jun 17, 2008

    Laars Lite 2 Gas valve on, adequate gas flow, pilot on, backwashed pool, psi less than 10 psi, pool person who opened pool claims he had it lighted??, everything clean, lines all open, Whats up?

  • bambireno Jun 29, 2008

    Hello \I too have the same problem, Where exactly should one vacum

    Thanks

  • Anonymous Jul 24, 2008

    heater will not start

  • avanmaren Aug 05, 2008

    heater pilot light is on but the heater won't turn on, did backwash, so pressure is fine.

  • Z54Burma Aug 05, 2008

    Where is the safety valve relative to the pilot on a Teledyne Laars EG-175 heater or similar?

    I'd like to try to clean it as suggested.

    Thanks.

  • Anonymous Aug 23, 2008

    pilot on burners won't kick in. Thermo switch seems to not function all the time. Is there a way to light the burners by passing the switch?

  • scottmurphy Aug 25, 2008

    have the same problem with a laars teledyne 400,000 btu. Yes it's older than dirt but the insides are pretty clean. It works great most of the time but will not kick off intermittantly. Pressure is fine etc. I can see the pilot is blue but the gut's are pretty old. It seems to help when i clean all the connections but that may just be chance. where is the valve to clean? Thanks

  • slade8 Mar 20, 2009

    teledyne laars model ESC400H, hear clicking but will not ignite. Gas is on but I also never smell gas no matter how long I leave the switch to "on". Has an electric igniter for the pilot. Water pressure is normal.

  • pdmac67 May 21, 2009

    I have a lasrs lite 2 175000 btu,its propane,my pilot is on,propane wont kick in,cant smell the gas,is it the pressure switch?how do i bypass it just to make sure before i order one,as they wont take it back?

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  • Master
  • 868 Answers

The safety valve isn't opening .It's very possible that a spider is trapping the opening of the orifice.

Posted on May 26, 2008

  • Bob Pell Sep 24, 2010

    Ok I have the schematic and manual for Teladyne lars EG 175 unit and there is no such thing as safety valve anywhere to be found. Two things to be checked- 1. swithces/sensors (pray to god it them) 2. gas valve (pray to god its not this as it will cost you $270 big ones)
    place a jumper between 2 closets wires to you on the control valve (there are 4) dont have the colors of wires as I am work now. If the heater comes on then the you have isolated the problem to protective controls or thermostat. If heater does not come on then its the gas valve/wire harness grounded/pilot light.
    If the heater worked fine before and now all of a sudden its not - you can eliminate the pilot light as the likelihood of it being out of position is far fetched. To test for grounded wire remove the first two wires facing you from the gas valve(same one from above) place a jumper across terminals and if the heater lights up something is grounded and you need to check all the wires. if this doesnt solve the problem the only thing left is the gas valve being struck closed and time to do some R/R. Hope this helps

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3 Answers

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Check the burner, the holes may be plugged, especially at the beginning of the season. Same happens to the pilot light tube. Spiders love to make nests inside those small holes clogging everything up.

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