PQE 500 Replacing High Limit Thermocouple

Only perform this procedure when the unit is cool or severe burns may result.

Follow these instructions to replace the left side High Limit "J-Type" Thermocouple.

1. Remove hot oil from the fryer.

2. Turn power switch off.

3. Ensure fryer is cool to the touch before moving.

4. Pull out the fryer and unplug from power source.

   

5. Using a crosstip screwdriver, remove the screws securing the left side panel.

   

6. Then, remove screws from control panel and carefully lower the control towards you.



7. Access the left high limit module and carefully disconnect the thermocouple wires using needle nose pliers.



8. Access the elements and loosen the two crosstip head screws from the front left bracket securing the probe. Remove the bracket.

9. Using a 1/2 inch wrench, remove the compression bushing and high limit probe from the vat.

10. Apply High-Temp Loctite to new High Limit probe.

11. Install and tighten down main compression bushing making sure the bend of probe goes downward. NOTE: Do not tighten compression nut



12. Install probe into bracket and snug bracket screws. NOTE: Do not fully tighten. Measure 4.5 inches from the vat (pot) wall to end of probe and adjust probe accordingly.

13. Tighten bracket screws to 22in-lbs.

14. Tighten High Limit compression nut to snug and then one 3/4 turn.

Do not over tighten compression nut. This can damage the probe.

15. Working in reverse, complete steps 6 through 1 and return the fryer to service.