May 24, 2012, 04:26:38 AMLatest Member: Bertsmitheuro

Author Topic: boiler wont light  (Read 217 times)

farmergord

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boiler wont light
« on: January 18, 2012, 10:32:56 PM »
I just re and re,d my boiler with a newer version of my existing boiler.its a Laars Mini therm 2  with electronic ignition and an automatic damper.I have it installed and wired and when I turn up a thermosat the zone valve opens , the automatic damper opens and the circulation pump comes on ,but the boiler does not attempt to light. this is the same boiler as I had before so it is puzzling me what is wrong .Its minus 20 her tonight with a 25 mph wind blowing out of the north and this is day 5 with only a wood fireplace and a gas log fireplace for heat .Any ideas, anybody wants to make a house call . thanks guys
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GT Jets

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Re: boiler wont light
« Reply #1 on: January 18, 2012, 11:11:49 PM »
Step one, move to a warmer friggen area... :screwy:

Second,

Check the terminal board wiring on the wiring diagram for an interlock for either a low water cut off or a time clock input and make sure they are jumpered or the control is closed.

I am looking up the O and M right now for it... ;)

GT
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

GT Jets

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Re: boiler wont light
« Reply #2 on: January 18, 2012, 11:20:07 PM »
Did you bleed the gas line of any air? Do you have gas at the main line going in?

It almost sounds like a rollout switch is open, this should be a manual reset switch with two terminals and a little chicken shit red button on it...

GT
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

GT Jets

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Re: boiler wont light
« Reply #3 on: January 18, 2012, 11:24:46 PM »
For the hell of it, put a jumper wire across "R" and "W"...

GT
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

farmergord

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Re: boiler wont light
« Reply #4 on: January 19, 2012, 12:33:49 AM »
thanks Glenn I have narrowed the problem down to the automatic damper. it came with a premade harness which was straight forward but there was another plug inside with a purple ,yellow, and black wire init there was a jumper across 2 of the wires  and a tag  attached saying when using the damper disconnect the jumper. there is no where within the length of the wires in the plug to plug it in but if I put the jumper back in the boiler lights.hmmmmmmm
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Im not a nag Im a motivational speaker

farmergord

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Re: boiler wont light
« Reply #5 on: January 19, 2012, 01:53:38 PM »
problem solved according to tech bulliten #1077 (which I didnt have )  in my application the jumper wire stays in place , figured it out by trial and error and my trusty meter
  • Boat #1: 1976 Pioneer 19foot
Im not a nag Im a motivational speaker

GT Jets

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Re: boiler wont light
« Reply #6 on: January 19, 2012, 07:00:05 PM »
problem solved according to tech bulliten #1077 (which I didnt have )  in my application the jumper wire stays in place , figured it out by trial and error and my trusty meter
:thumbup: :thumbup: :thumbup:
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

 


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