Replacing the High Limit

This is a safety, manual reset control, which senses the temperature of the oil. If the oil temperature exceeds 425°F (218°C), this switch opens and shuts off the heat to the vat. When the temperature of the oil drops to a safe operation limit, manually reset the control by pressing the reset button.

The reset button is located in the hinge of the element. Use a small screwdriver or Allen wrench, gently push it into the hole in the heating element hinge; if high limit does not reset, high limit must be replaced. If high limit resets, the oil starts heating.

Checkout

To avoid electrical shock or property damage, move the power switch to OFF and disconnect power.

The oil temperature must be below 380° F (193° C) to accurately perform this check.

1. Remove control panel and hinge it down.

2. Referring to the decal on the rear of the control panel, locate P9 connector (left vat-split vat) or P10 connector (full or right vat).

   

3. Attempt to reset the high limit and then pull the connector from the board and check for continuity between the 2 appropriate pins. If the circuit is open then continue replacement procedure. (If the circuit is closed, the high limit is not defective).

Replacing the High Limit Probe

If the tube is broken or cracked, the control opens, shutting off electrical power. The control cannot be reset.

1. Using a crosshead screwdriver, or screw gun, remove the rear panel (9 screws).

   

2. Using 3/8” wrench or socket, remove the 2 acorn nuts securing bracket to unit.

   

3. Using a crosshead screwdriver, remove the 2 screws securing the high limit to the bracket.

   

4. Use the lift tool and lift the hinged element from the vat.

   NOTICE -

   To avoid equipment damage, do not use element lifting tool near the high limit bulb.

   

5. Pull the high limit from the bracket, pull back the cardboard protector, and remove the two electrical wires from the high limit control.

   

6. Pull-out on the drain valve knob and drain the oil from the vat.

   

7. While holding the top-side capillary bracket, use a crosshead screwdriver and remove the screws securing the capillary bulb to the lower element bracket.

8. Remove both front and rear capillary brackets.

   

9. Using a crosshead screwdriver, remove the screws securing the capillary bulb to the upper element brackets.

   

10. Remove high limit bulb from element and carefully straighten the capillary tube and pull the high limit control from the rear of the unit.

    NOTE: It’s important not to damage the capillary bulb when removing or installing the high limit from the unit. Undamaged high limits returned for warranty can be evaluated for cause of failure.

    

    Capillary bulbs or tubes damaged during installation causes high limit to fail prematurely.

11. Insert new high limit capillary through hole in rear of fryer and slide high limit into bracket and then secure with the 2 screws.

    

12. Slide bracket and high limit assembly into place, making sure a 1/8 inch (2-3mm) gap remains between the red high limit button and the reset place, and then secure with the 2 acorn nuts removed in step 3.

    

13. Carefully slide capillary bulb up through the element, from the rear of the elements.

    

14. Using the capillary brackets removed in step 3 (see below), attach the capillary to the lower brackets, aligning the capillary so it does NOT touch the element.

15. Secure the capillary to the upper brackets.

16. Replace rear cover and reconnect power to vat.

17. Lower element back into vat and close drain. Fill vat by pressing and holding the filter button until *FILTER**MENU* displays. Then once “1. EXPRESS FILTER” displays, press the right arrow button four times until “5.FILL FROM PAN” displays. Press √ button and “PUMP” “EXIT” displays. Press √ button again, and oil fills vat. Once vat is full, press X twice to return to normal operation.