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Thread: Fryer Problems

  1. #1
    Join Date
    May 2010
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    1,295

    Fryer Problems

    Client states fryer will stay on but for only 20min. I am thinking hi-limit or thermostat touching the heat exchanger tubing? Any thoughts? Or thermostat is bad causing hi-limit to trip?

  2. #2
    Join Date
    May 2010
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    1,295
    Dirty pilot orifice causing pilot flame not to contact thermopile

  3. #3
    Join Date
    May 2010
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    Thanks man!

  4. #4
    Join Date
    May 2010
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    No problem, Glad I could help.

  5. #5
    Join Date
    Mar 2011
    Location
    Canada
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    131
    i like talking to myself aswell

  6. #6
    Join Date
    Mar 2006
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    1,028
    seems you solved it, on the pitco ones i work on the highlimit kills the pilot, so ill ask them if the pilot goes out when they notice the fryer not working, i always replace the hi-limit and t-start at the same time.

    if the orfice was clogged, then how would it light in begin with?

  7. #7
    Join Date
    May 2010
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    1,295
    orifice wasn't "clogged" but partially restricted not allowing enough gas to the pilot resulting in small pilot flame. I always check hi limit by disconnecting the two leads and touching them together if pilot goes out no problem. If it doesn't... Defective hi-limit

  8. #8
    Join Date
    Oct 2010
    Posts
    47
    It was a millivolt control fryer. If the pilot isn't strong enough to heat up the thermopile to generate the proper millivolt to open the gas valve then it will not work but will still keep the pilot open. Curious why do you always replace the thermostat and hi limit together? Using a temp gauge will tell you which control really needs replacing.

  9. #9
    Join Date
    May 2010
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    1,295
    Ya I stuck my fluke probe in the oil and monitored the temps to see if it was the thermostat

  10. #10
    This check has been tried and tested and works great. You jumper out the Hi-limit, then you make sure the fryer is full of oil and heat it up while monitoring the temperature closely so it won't overheat and to check the t-stat is controlling the temp. this will tell you what parts need replacing. no need to go over 400 - 450 degrees, don't need flames, good luck

  11. #11
    Join Date
    Oct 2010
    Posts
    47
    Why would you jump out the hi limit? I would want to see if it is failing at a lower temp also. As long as it doesn't fail under the highest setting on the tstat then what is the point?

  12. #12
    Join Date
    May 2010
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    x2 to what temp said

  13. #13
    Join Date
    Oct 2010
    Posts
    47
    Again how would that test a hi limit that fails at lets say 300 degrees?

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