Question about American Range AF45LP Deep Fryer

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American range af45 pilot goes out when t-stat is set

Installed new thermopile worked good for 3 weeks then problem reoccurred. Can get pilot to light but when setting tstat the pilot goes out. Did get it to fire once and come up to temp but failed relight for tstat cycle off-on. checked all connections.

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  • rickyturner1 Jul 25, 2009


  • rickyturner1 Jul 25, 2009


  • rickyturner1 Jul 25, 2009

    Well dickson948 I might understand a little more than you think I am a refrigeration and a/c tech I have not done any gas in 15 years or so . How about I set the gas pressure at 4" of water column and clean out the vent. Why did you even respond if you are going to be so arrogant and then end with a god bless?

  • rickyturner1 Jul 25, 2009

    dickson948 I am a a/c and refrigeration tech I have not done any gas in many years but I am capable of grasping the info if you really do have the knowledge.
    How about I set it at 4" of water column and clean out the vent.Please dont respond anymore unless you can help you sound a little arrogant. God bless

  • rickyturner1 Jul 27, 2009

    Thank You Sir! Now I understand. Thank you for your sharing your knowledge and yes there is another pressure regulator on the line. I think I can fix it now. I apologize for stressing out. Its easy on the computer.
    You have a nice day.

  • Ned C Cook
    Ned C Cook May 11, 2010

    gas or electric?



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Sounds like Dickson is an unemployed "gas fitter".
I would suspect a faulty thermocoupler. Your reference to a thermopile threw me off, Thats why I wonder if it was gas or elwctric. Yeah, consider the thermocoupler. I've haven't a clue what dickson was talking about and in all honesty you would be a better judge about making any sdjustments. Good luck

Posted on Jul 25, 2009

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Sorry to say this, you should not play around with gas equipment, please call in a gas fitter to deal with it. I know what is happening and if I tell you it is the gas pressure problem you still don't understand what I'm talking about or how to clean out the pressure vent hole or how to check the gas pressure because you don't have the proper equipment. Please let the right people do the right job. God Bless.

Posted on Jul 25, 2009

  • Dickson LAU Jul 27, 2009

    First of all please accept my sincere apologize , I only want to tell people don't play around with gas equipment because they are not like electricity they will cause explosion , I've my eyelash and my hair scored before, even I'm a gas fitter.

    I didn't know I'm talking to a pro. Now let us get down to your problem about the pilot going out while you turning the thermostat to call for the main gas to open. The 4" gas full pressure will rush to the main burner and the pilot burner .and that is what it suppose to be.

    But the problem you have now is when the main valve open it draws most of the gas and the pressure drops so much that it can't keep the thermopile produce the normal flame to keep the pilot on and sometimes the pilot have no gas it just goes out like the problem you 've now ,shutting off in the safety condition. ( You can see it happening while you turning the thermostat and watch the pilot flame going down ,immediately turn the thermostat off the pilot flame will comes up strong again)

    Another question is. Is there another pressure regulator at the inlet of this deep fryer , there shouldn't be one . because the combination valve already have a pressure regulator build in. Except the inlet gas line is in High Pressure.

    Now the vent I'm talking about is on this combination valve ,( they call this the regulator vent ) it is only a screw but have a very small hole vent if this is block the gas pressure will not be release and you'll have your present situation. Sometimes when you take off this screw the unit will work properly then you know the problem is in this regulator vent screw. You have to clean it out and put it back thought.

    I hope this will help. Sorry again that I made you fill uneasy. Let us exchange our knowledges instead.

    Have a nice day, God Bless again.



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