I have a Pitco Frialator 35CS Deep fryer that is leaking natural gas leak inside gas fryer door just above gas valve assembly the leak is bubbling through each of the 3 flues above the gas valve any help with this problem would be great as when the door is opened it has a very gassy smell and could be dangerous?

Would not be a good plan to do this your self gas valve replacement is a gas fitters job

Hi there.
Check and tighten all wiring connections.
Check the hi limit for continuity across the terminals using an ohm meter, if it has no continuity, you have to replace the hi limit.
Regards.

if its not the thermo couple, it may be the gas valve or the pilot jet needs cleaning

Hi there.
Pilot light on Millivolt Gas Valve can be adjusted by removing the screw (with pilot adj mark) just below the gas valve knob and tightening (to increase pilot flame) or loosening (to decrease pilot flame) the screw inside. However, make sure that the gas pressure is sufficient and the pilot assembly is clean before doing this.
Regards.

Pilot assembly is located between the two middle burners, this is where the pilot is lighted. You have to turn the gas valve knob to pilot position then push it while lighting the pilot assembly.

You need to identify where the leak is coming.
If the leak is on the fry tank, best way to address it is to replace the oil tank.
Check the serial number of the unit with leak on fry tank, verify if it is still under warranty at PITCO web on http://www.middleby.com.

Try to spray wd40 on knob.
If spraying wd40 doesn't work, you have to replace the gas valve.

It shuts down because it is tripping the high limit. Apply a soap solution to the lines going from the gas valve to the thermostat. If bubbles appear there is a leak and needs to be corrected. If no bubbles appear then the thermostat is probably your problem.

Either the thermostat is bad or there is a gas leak between the gas valve and the thermostat. Use a soap solution and apply it to the 1/4" gas lines between the thermostat and gas valve. If bubbles appear then you need to fix the gas leak. If no bubbles appear then set the gas valve to the pilot position, remove the gas line marked "out" (the left one) from the gas valve. Turn the gas valve to on. The burners should turn on. Place you finger over the hole where the disconnected line was and the burners should turn off within 10 -15 seconds. If this happens then the thermostat is your problem.

Make sure that the gas pressure is standard (as rated on nameplate), thermopile must be clean (no dirt or soot) and the thermostat is good.