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Posted by Noon-Air on December 31, 2006, 7:12 pm
>
>>
>>> The following message is written with respect to your profession !
>>>
>>> As for the "LP isn't anything to mess with"...
>>> Don't take this wrong, but that falls under the normal 'understood'
>>> precautions. People might call me crazy, but I'm not stupid.
>>> Is there something specific you're trying to warn me of ?
>>>
>>> Let's re-phrase my "novice" status - I'm not going to pretend to be a
>>> HVAC
>>> expert, but I'm a lot more advanced than your regular DYI'er.
>>> (I'm an aircraft maintenance instructor - on commercial aircraft)
>>> So, could you please respond on a higher level - please :^)
>>> I know you all hate it when a non-expert looks at the schematic and
>>> thinks
>>> he's got it all figured out.
>>> Well, I'll confess that's partly the case, but how complicated can this
>>> sucker be (I CAN grasp the concepts and understand system functions).
>>> And systems troubleshooting (including electrical)is part of my job, and
>>> I've got the test equipment.
>>> Yes, at some point I do have enough smarts to know when I'm in over my
>>> head.
>>>
>>> So, back to the problem ...
>>> If it's not a control issue, then what's preventing the controller from
>>> applying the power to open the gas valve ?
>>> The vent blower switch and limit switch (which provide power to the
>>> controller) are good - there's 24v to the controller. I don't see any
>>> other inputs to the controller that it would use as logic for powering
>>> the
>>> gas valve.
>>> High voltage to the controller is good, and igniter works,
>>> so, that leaves the low voltage side of the controller - to the gas
>>> valve.
>>> So, what am I missing? I checked the voltages to/at the connector on
>>> the
>>> controller - it's easy to probe from the back of the unit.
>>>
>>> I'd just like to understand... :^)
>>> but I also don't want to be lumped in the category from the
>>> "every year, there's got to be a few of these idiots" thread :^{
>>>
>>> Remember, I meant this all in a respectful way !!! :^)
>>> Thanks Marc
>>
>>Like Mike said.... "once all the safties are proven"......
>>and *if* all of the safties are proven, then yes, look at the control
>>module....
>>
>
> hell who knows it could also be a slow opening gas valve or
> intermittant gas valve. might be a bad or intermittant grounding
> issue. maybe itsa honeywell smartvalve issue.
Smartvalve?? not hardly...
"Coleman residential (LP)"
Can you say trailer??
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