I have been told that i require a new relay board i have another pitco same year same model how could i go about identifying the relay board (to remove) myself? to use as replacment.
Regards and thanks
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If your fryer has computer controller (the one with 8 product buttons and left, right arrow), check the display when you turn off the computer board, it should display "gas 2". If not, you have to change the gas configuration by accessing the programming mode.
Check sum failure is an error on the configuration of the computer board. You have to reset the computer board to factory setting to get rid of this error (if check sum failure appears every now and then on the display). Make sure that you have the list of your cooking parameters before you reset the board to factory setting. Any settings made prior to a factory reset will be lost. Details on how to reset the board to factory setting can be downloaded at pitco website on www.middleby.com.
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.
Check if the flame quality of the pilot is good. Small amount of voltage generated by thermopile used in energizing pilot main valve coil during fryer operation relies on the quality of pilot flame, also, the thermopile itself should be free of soot or any form of dirt in order for it to absorb the heat from pilot flame. Check also the gas pressure, it should meet the gas pressure required on the nameplate.
Better check the incoming gas pressure first, it should match the requirement as stated on the nameplate. Low gas pressure will make the pilot flame small until it could not heat up the thermopile which will shut both main burner and pilot flame.
Sounds to me the thermopile (thermocouple) is at fault, it's a safety device to detect if the pilot flame is alight or not. If the pilot should go out for any reason, the thermopile will detect this & shutdown the gas valve (ie the unit will cease to operate).
A new thermopile should solve your problem. It's not a task I would attempt yourself if you are in any doubt.