Question about Pitco Frialator SG14 Deep Fryer

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Head Banger Has anyone heard of a fryer's Hi-Limit actually tripping when at temp, 350ish, a large amount of frozen product (fish in this case) gets dumped into the vat rapidly bringing the temp below a normal low temp.? I have heard of this problem years ago, but can't remember under what circumstances. Would the condition of the oil new vs old black have a part in this problem? Pitco PG14SS

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Re: Head Banger

I havent heard of this but these suggestions may help you.the hi-limit is preset at the flash point of oil (depending on the oil) around 500-525 degrees.if the hi-limit is tripping out either the thermostat is out of calberation,the hilimit itself is bad or the hilimit/thermostat bulb arent secured to their respective bracket.if you have a meter or thermocouple tester to test the actual heat of the oil (or a half decent themometer).set the temp dial to 200 degrees,once the burners go out put the thermometer/meter into the oil.the temps should match 20 degrees over/under is acceptable.if not the t-stat is bad.if this is ok goto the hi-limit and jump it out,there should be 2 wires take them off and connect them directly.set the dial to 350,wait until the burners shut off and test the temp of the oil again.if it matches your hilimit is bad.let me careful when you do this because if the t-stat is bad the oil may ignite.if you see a lot of smoke cut it off.let me know.

Posted on Jan 12, 2008

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I can turn on the pitco fryer.But it trips around 200 degree and I can't turn it on until the temp goes down. What's the problem? Do I need to check the Hi-limit or the thermostat?

Hi there.
Check the sensing bulb of the hi limit, ensure that it is not touching the fire tube.
If the hi limit sensing bulb is corrected and still tripping prematurely, you have to replace it with a good one.

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What is the reason for the reset button keep poping out on the dean sm35gm

Hi there!
Reset button of hi-limit switch will only pop-out when its sensing bulb sensed temperature higher tha 450F (trip temperature of hi-limit). Theramostat may be bad allowing oil to reach temp above 450F causing hi-limit to trip-off or hi-limit itself is bad tripping-off at temperature lower than 450F.
Check also the position of the sensing bulb of the hi-limit, it may be positioned touching the heat tube (for gas fryer) or heating element (for electric fryer) that's why it prematurely trips-off.

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1 Answer

Fryer is cutting out after certain temp and tripping hi limit. I replaced Hi Limit, Thermopile and Thermostat and it worked great for two days and then kicked out again, tripped Hi Limit. I'm baffled...

Hi there
Hi limit will trip at 450F.
Check your thermostat setting, then check its calibration, this way you will be able to verify where the problem is.
If the setting and calibration of the thermostat is good, check the hi limit sensing bulb, it should not touch the fire tube because if it does, it will sense high temperature and will cause premature tripping.

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1 Answer

Just replaced thermopile, hi limit and thermostat and the fryer still cutting out at certain temp. Seems like when it hits 400 it will cut out. What could be the issue? Do we need to lower the temp? I...

Hi there.
Better check the calibration of the thermostat. Hi limit trips at 450F.
For the best factory recommended thermostat calibration procedure, you can visit

Jul 11, 2011 | Pitco Frialator SG14 Deep Fryer

1 Answer

Flame goes off when temp. reaches 250 degrees, use to stay on 350 degrees without problems an them started acting up and won't reach that temp any more, disconnect the pilot automaticly

Hi limit device trips prematurely (should only trip when oil temp reaches 450F). Check if the hi limit sensing bulb (located inside the fryer tank, between fire tubes) is not touching the fire tube because if it does, it will sense the heat from burner flame which is much higher than oil temp.

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1 Answer

Fryer will heat up at 350 temp setting but actual reading is 375. The problem we are having is that the fryer will heat up fine then when the burner goes of the pilot will also shut off. If however i run...

The thermostat is out of calibration and the hi-limit may be as well. I could give you instructions on calibrating the thermostat but the hi-limit is not adjustable at all. The hi-limit cuts off the burners and pilot in the event that the unit gets close to the flash point of the cooking oil. It should not cut out until 400-425 so either the fryer is occaisionally getting a lot hotter than you think or the hi-limit has gotten weak due to the erratic operation of the thermostat. I would recommend that you change both the thermostat and the hi-limit.

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1 Answer

I have a 40c+ss pitco fryer.the pilot will go out at random times.Could be 1hr or 24 hrs after it is lit. The gas valve has been change, and the thermalpile has been replaced.

Check if your pilot flame sufficiently heats thermopile during operation and make sure also that it is free of soot or any form of dirt, thermopile generates small amount of electricity to energize pilot and main valve of the gas valve for pilot and main burner operation. This electricity passes through hi limit mechanical contacts. Hi limit on fryers act as safety device which will shut down pilot and burner flame when oil temperature reaches 450F.
If your fryer is set at 350F and over shoots up to 450F (which will trip hi limit and shut down pilot and burner flame), the thermostat is not good, but, if hi limit trips on temperature much lower than 450F, hi limit is bad.

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5 Answers

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When the whole unit shuts down including the pilot light the thermocouple is not working properly. The thermocouple is what tells the gas safety valve that the pilot light is lighted. When the thermocouple fails and does not send the milli-volt (mv) signal to the gas safety valve due a failure the gas safety valve turns off the gas supply. (i.e total shut down)
If you have a handyman around you can have him disconnect the thermocouple from the gas valve control and clean the mating area in the gas valve and on the bitter end of the thermocouple. After cleaning then reconnect the thermocouple. This sometimes corrects the problem. FYI you can get a thermocouple at most any large appliance parts supply. (You will need to the know total length) It would be even better to have the old one in hand during the trip to the parts store.

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My fryer will not heat up consistently. If i press the reset button, it heats up. But after heating up to a certain temp it shuts down and stops heating. There is power to the unit, it seems like a problem...

It probably is a problem with the thermostat. The reset button is probably a high limit. The high limit is a safety device to turn the fryer off if the oil gets too hot. Normally they will "trip" somewhere between 375 - 450 degrees F for commercial fryers. I would suggest placing a temperature probe in the oil and see what the oil temp is when it trips. If it trips at a temp below 375, it is a bad high limit. If the thermostat is set at 350 and the temp goes over 400 then the thermostat is bad.

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2 Answers

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Foxtrot---i answered you last time im the hobart tech,your still having this issue?tell me exactly whats going on--we'll solve this!

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