Question about Vulcan AUW230A Heater

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My vulcan ducted heating unit blows cold air for approx 1 minute when turned on then stops and try's again after approx 1 minute,it does this several times until ignited.It is obviously an ignition problem.Can anyone help.Cheers.

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Two things have to occur here:

1) The ignitor has to light off the gas. A bad ignitor, or dusty burners can prevent ignition.

2) The thermocouple has to be in the flow of burning gas to prevent a safety shut-down, and has to be working.

And the obvious: you need pressure in the gas line, and the gas valve needs to be open.

Hope this helps you locate the problem!


Posted on Aug 14, 2010

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