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Experience:  15yrs in the HVAC industry with certificates and degrees.
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Vulcan duct heating system,what is mean the lock out.

Customer Question

Vulcan duct heating system,what is mean the lock out.
Submitted: 2 months ago.
Category: HVAC
Customer: replied 2 months ago.
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Customer: replied 2 months ago.
After i turn off/on the duct heating and reset button. i am turn on the duct heating, it's start up for 19 second and then it's shut down.
Customer: replied 2 months ago.
sorry i didn't get the answer yet?
Expert:  HVAC Guru replied 2 months ago.

Hello and thanks for using this service! If you are a JA Member I would like to personally thank you and welcome you back! I am HVAC Guru an extremely experienced tech on the site and I try to get to as many customers as I can. NOTE it takes time for me to type research and add links so please wait for me to respond back I can only do this so fast. Secondly, I do not know your skill level so please try and let me know if I am going beyond your knowledge or comfort zone thanks! I strive for a 5 star rating from everyone especially our JA members.


Sorry no one has gotten to you sooner, that means the unit has gone into a lockout for typically an igntion failure. Normally the issue for that is a dirty flame sensor. When it lights if the unit does not recognize there is a flame it will try again and then it will fail to a lockout. There could be other things causing a lockout condition but since it is within a 20 second period that would normally be a flame issue. I would get to the flame sensor rod and clean it off with some sand paper really well and try it again.

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