Question about Lite On Laars Lite 2 Heaters: 250,000BTU MV Heater

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Laars boiler my boiler will not fire up the pilot is on the pump is running can you help

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  • tommy50 May 27, 2008

    thanks for your help i have found the problem after by passing the high & low limit stats the bioler fired up and found the wires had melted inside the caseing as the boiler is 26 months old and cost £ 1.500 i will not be recomending a laars boiler to any one

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It's likely the pressure switch. If the heater isn't enough water pressure through it it won't fire. I had the same problem with mine. Try bypassing the switch with a little piece of wire and see what happens.
I replaced my switch this year and it seems to be working fine. You might want to take the switch off and let water pump through the siphon hose for a few minutes.
Good luck.
B

Posted on May 26, 2008

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I'm having the same problem. I thought it was due to having to put some non-detergent oil in the siphon loop, but that doesn't work either....i'm still having the same problem...will not kick on!!!!

Posted on May 04, 2008

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