Question about Teledyne Laars Laars LT Heater 400000 BTU NG Elec Ignition

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Heater won't fire up after sitting the winter

Worked fine last season! Pressure switch?

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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

Miles

Posted on Jun 05, 2010

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Posted on Jan 02, 2017

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We get a horrible smell occasionally with our Rinnai Avenger 25 nat.gas heater when alight. The filters are clean & was serivced last winter. It was making the smell at times even after the service. It...


From what you have described, it sounds like a case of delayed ignition or as the Owner's Manual calls it a "Combustion Control Fault"or "Incomplete Combustion". This can be caused by several things: A change in the gas pressure; dirty or clogged burner, electronic fault in the combustion controls.

Despite having it cleaned an services last Winter, 12 months have elapsed, with the unit just sitting and collecting dust and spiders. Portable Heating units should be serviced annually. Usually in the early Fall, before firing it up for the heating season.

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Ben sitting in the garage all winter it has a new battery i checked all the fuses an the connections all it does is turn over but no fire


This new gas that everybody is selling with the ethanol goes bad very quickly try using some lucas fuel stabilizer and if that does work check the run / not run switch above the start button if it got some corrosion in the switch it would allow the engine to turn over but not fire. Good luck riding season is right around the corner.

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Have a Triton Millivolt pool heater pilot is lit and nothing!!


Low out put voltage from the pilot generator and/or an open circuit in the control circuit...the most common is a bad pressure switch (dirty filters can hamper pressure switch operation).

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