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Old 08-25-2015, 08:08 PM   #11
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that vent next to the orifice admits air to get the proper mixture. blocking that to gain operation would indicate too much air to the mixture. could be residual air from improper purge. try another lp tank and purge manifold and see if it improves...
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Old 08-26-2015, 12:54 PM   #12
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That makes a lot of sense actually. I'll give that a shot. I decided to play with the igniter position and it lit. Not sure if I got lucky and it would have lit regardless. I turned it off and will try again tonight to see if it fires right up. If not, I'll proceed with switching tanks and purging the manifold.


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Old 08-26-2015, 01:36 PM   #13
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you may be in the process of removing the last remaining air. like you said, if it wont light with a flame, then the ignitor is ruled out. the air, if thats the case, will be concentrated with the vapor at the top of the liquid and the first to go. everything being new, i would go with this test before adjusting ect...
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Old 08-27-2015, 12:57 AM   #14
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Background: tank manufacturers pressure test new tanks with compressed air. They come to the rv manufacturer with that same compressed air. If there is ANY pdi done by mfg they DO NOT use the tanks that the Rv ships with because the RV comes to the dealer with the same compressed air in the tanks. The only exception may be the motorized units. The dealer then must "purge" the tank...

Purging: bleed off all air. Hook up to an lp tank and add lp VAPOR to tank for a few seconds. Bleed off. Repeat a couple more times. Vapor is used so cold liquid lp changing state to vapor during depressurization does not cause moisture in air to condensate in tank. Then fill lp tank.

As you can imagine, this process could be botched or bypassed pretty easily...if lp is added to compressed air in tank, thats a lot of air to screw up A/F ratio, especially in small flames. With a new unit, it seemed like a probable source of the problem.
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Old 09-08-2015, 09:15 PM   #15
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Quick update and to say thanks to everyone. After adjusting the igniter it fires up after the first click every-time now. Thanks for all the advice. Working like a charm now.


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Old 09-08-2015, 09:21 PM   #16
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Originally Posted by Griswalds View Post
Quick update and to say thanks to everyone. After adjusting the igniter it fires up after the first click every-time now. Thanks for all the advice. Working like a charm now.


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Old 09-08-2015, 09:41 PM   #17
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Quick update and to say thanks to everyone. After adjusting the igniter it fires up after the first click every-time now. Thanks for all the advice. Working like a charm now.


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Thank you for letting us know what finely fixed the problem.

Glad I could help Tim
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