gas valve problems
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  1. #1

    gas valve problems

    hi (help!!) the piolt is very good fast but when i turn to the on position it all shuts of does any one know what is the prob. this is a deepfryer with a robertshaw gas vavle 700s on LP gas . i open it and verything look ok to me .

    thank 4 ur help

  2. #2
    Join Date
    Dec 2002
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    SouthEast NC ICW & Piedmont Foothills
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    i don't understand




    what this has to do with the convention
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  3. #3
    Join Date
    Jul 2007
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    Mount Airy, MD
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    7,281
    Thread relocated to the proper section of the site.


  4. #4
    Join Date
    Mar 2002
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    fort walton beach fl.
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    790
    Quote Originally Posted by omar4520 View Post
    hi (help!!) the piolt is very good fast but when i turn to the on position it all shuts of does any one know what is the prob. this is a deepfryer with a robertshaw gas vavle 700s on LP gas . i open it and verything look ok to me .

    thank 4 ur help
    Is this valve converted to LP? Whats the gas pressure? Did you check the high limit?
    http://acfwb.com/

    "The best preparation for good work tomorrow is to do good work today"

  5. #5
    Join Date
    Jan 2008
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    Lake Worth, FL
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    Possibly a bad thermocouple/thermopile. Have a professional check it out.

  6. #6
    Join Date
    Nov 2000
    Location
    Memphis TN USA
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    1st verify thermocouple votes (or replace thermocouple)
    2nd verify high limit (or replace)
    3rd verify no shorts in gas valve, thermostat, powerhead or wiring.

    Best bet, buy only millivolt friers and replace them every few years. If they can't afford a $750 frier every few years, they should not be in business.
    If the superheat ain't right it ain't charged right.

  7. #7
    Join Date
    Jul 2010
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    So-Cal
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    Quote Originally Posted by kim View Post
    Best bet, buy only millivolt friers and replace them every few years. If they can't afford a $750 frier every few years, they should not be in business.


    Seriously?

    Thats your advice?

    Let's see a $10.00 Thermocouple or a $750.00 fryer! Hmmmmm

  8. #8
    Join Date
    Jan 2008
    Location
    Lake Worth, FL
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    111
    I agree with Jackinthebox......

  9. #9
    Join Date
    Nov 2000
    Location
    Memphis TN USA
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    Yes that is and has always been my advice.

    Read it again

    Let me reitterate IN MORE DETAIL in case you missed it the first time

    FIRST CHECK THE OUTPUT VOLTAGE OF THE THERMOCOUPLE
    If you do not know how to do that, replace the thermocouple

    How much do you charge for a thermocouple? Some of them cost me $45. I would charge 100% mark-up and 1 hour labor.

    Second check the high limit. That cost me about $100. I probably do not have one on my truck. I drain the fryer and go get a limit. We are looking at 100% markup and 2 hours labor.

    Now a thermocouple not staying lit is ussually one of those 2. It could also be a gas valve or a short someplace. Ussualy I can diagnose that, but some shorts are intermitant

    Gas valve cost me about between $100 and $175. I do not have one on my truck, so we are looking at at least 2 hours.

    So how much are you willing to spend to fix a 3 or 4 year old $750 fryer? How much would you spend, if it was 10 years old? Of course, you could get the $600 chinese fryer.

    I was not given any of the details involved in this job.
    Is it a fryer system with a built-in filter system?
    Is it brand new?
    Is it 150 miles away from the parts store?
    Is it a millivolt system?

    I would not buy anything but a simple $750 Dean fryer and plan on replacing it every 3 years. That is less than the cost of one basket of fries a day over its life. I do not see that as extreme.
    If the superheat ain't right it ain't charged right.

  10. #10
    Join Date
    Nov 2000
    Location
    Memphis TN USA
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    Quote Originally Posted by pairman View Post
    I agree with Jackinthebox......
    Your advice is telling somebody posting in the pro section to farm the job out to another company
    If the superheat ain't right it ain't charged right.

  11. #11
    Join Date
    Mar 2008
    Location
    Over the river and through the woods
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    My only advice to this guy would have been to call a pro for (what seemed to me) obvious reasons. Nothing can turn a restaurant into a smoldering pile like a rigged fryer.... And I agree with Kim and offer the same exact advice to anybody who will listen. Buy the simplest millivolt fryer you can and a portable filter system. Nothing worse then seeing somebody spend megabucks on a battery of electronic built in filter fryers and be financially married to them when they become dysfunctional. Better to run that old el cheapo Pitco till something major fails and wing it into the nearest scrapyard. Why anybody would spend 5 bills fixing something which could be replaced for 7 bills is beyond me.

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