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Pitco Fryer Hi Limit Testing

Have you been called for a hi limit that constantly is tripping? You’ll need to perform some diagnostics to get to the bottom of what’s wrong with the part. So if you’ve arrived on the job but aren’t certain where to start, this guide has you covered. It’ll walk you through what to do and results to look for when performing Pitco fryer hi limit testing.

Hi Limit Diagnostics

Before going into further diagnostics, try to reset the high limit first to see if it just needs to be reset. 

  • Step 1. Unmount the hi limit – To begin your testing, you need better access to the hi limit. Start by loosening the 2 screws that are mounting the hi limit to the bracket. Then you will be able to carefully lower the hi limit out of the bracket for easier access during diagnostics.
    • Note: Take out the screws by hand to avoid losing them and be cautious not to kink the cap tube connected to the hi limit. 
  • Step 2. Disconnect the hi limit – To perform testing, we need access to the wires connected to the hi limit. Remove the cover to expose the wires you need to access. Then remove the screws securing the wires. 
  • Step 3. Test the hi limit – Using a multimeter, check to see what the hi limit is ohming out at. For Pitco millivolt fryers, if the reading is above 0.5, you will need to replace the hi limit.
    • Note: Anything below a 0.5 on a millivolt unit is acceptable.