Boler Furnace won't light - Page 3 - Fiberglass RV

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Old 11-15-2008, 08:10 PM   #29
khoa l's Avatar
Trailer: 76 Boler 13 ft
Posts: 39
I have not done a voltage check on the pilot thermocouple. I read the instructions above but abit confused on how to do that.

So I should take off the thermocouple, heat the pilot end of the thermocouple and measure current. So with the voltmeter, I should have the + connector hooked to the pilot end of thermocouple and the - connector on the other end while heating the thermocouple..correct?

Am I just measuring any current. Assuming any current means it is working?

How could I check the thermocouple on the thermostat?

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Old 11-16-2008, 12:09 AM   #30
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Trailer: 76 Boler 13 ft
Posts: 39
Question: If there is air trapped in the lines when I turn on the propane tank, would I even get a flame from the pilot light?

The weird thing is that when i disconnect the main gas line running into the furnace and re-install it (which I have done several times now) the furnace will work more often than not.

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Old 11-16-2008, 08:02 AM   #31
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If I were doing this, this is what I would do.

I would clean the contact end of the thermo couple and the part where it connects to the regulator.

Check for leaks.

Get a hand propane torch. Connect everything back together as described in previous posts.

Light the pilot and if it goes out when U let off the button I would lite it again and put the torch flame on it, wait a couple of minutes and let off the button. If the pilot goes out then, I would take the heater to a qualified repair facility.
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Old 11-16-2008, 10:48 AM   #32
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Trailer: 76 Boler 13 ft
Posts: 39
Yes, I am really at the end of my ropes on this...I think I have just about exhausted all that I can troubleshoot, at least on my own. Next stop may be a repair tech.

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boler, furnace, lighting, lights, tail lights

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