Question about Jandy TELEDYNE LAARS GAS VALVE, PROPANE W/STREET ELL

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My TELEDYNE LAARS Boiler hammers when the main

My TELEDYNE LAARS Boiler hammers when the main burner is lit - but only if one valve is open. If more than one valve is open, then there is no hammering. This makes me think that I am not getting enough flow through the boiler, the boiler is too hot, or I have sediment in it (this doesn't make sense to me as why should the number of zones open matter).
Any ideas?

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The hammer is due to boiling inside some one has been messing with the safety controls or water to slow or no flow at all

Posted on Oct 15, 2009

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Posted on Jan 02, 2017

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BLUE PRINT FOR A TELEDYNE LAARS MODEL NO ESC250P


check gas pressure if ok check gas pressure on gas valve might have to adjust gas valve if new at this call a professional

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Heater was working fine but it stopped. I'm wondering what the problem might be. I've backwashed the filter, checked for dirt and spider webs inside the unit, turned off and on the knob....but no luck


If your Laars will not stay lit then the pilot generator is faulty. That is the small brass and copper piped connection near the pilot flame. It must produce 250minivolts in order to open the main gas valve and keep the gas running into the pilot burner..

please visit http://www.laarsman.co.uk for more help

Miles X

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My larrs pool heater will ignite,but not stay lit


If your Laars will not stay lit then the pilot generator is faulty. That is the small brass and copper piped connection near the pilot flame. It must produce 250minivolts in order to open the main gas valve and keep the gas running into the pilot burner..

please visit http://www.laarsman.co.uk for more help

Miles X

Jun 03, 2010 | Teledyne Laars Laars Lite2 Heater 400000...

1 Answer

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http://www.laarsman.co.uk

Miles

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http://www.laarsman.co.uk

Miles

May 03, 2010 | Teledyne Laars Laars Lite 2 Pool Heater...

1 Answer

Pool heater will not stay lit


Problem with the thermocoupler its not producing a minivolt of 250 plus that is needed to open the main gas valve

http://www.laarsman.co.uk

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1 Answer

Teledyne Laars LD250 Propane Pool heater cycles on and back off


Do you replace the thermopile or check the milivolts?
Check the Pressure gas
You need replace all of them terminals and check again the milivolts at the gas valve

Apr 01, 2010 | Teledyne Laars Laars Lite 2 Pool Heater...

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