Replacing the High Limit

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

The upper module controls the lower thermocouple. The lower module controls the upper thermocouple.

1. Lower the control board by performing the removal procedure.

   

2. Locate the faulty high limit module on the left-hand (from the front) side wall.

3. Mark all the wire locations, and then disconnect all the wires.

   

4. Use a 3/8 inch socket or nut-driver to remove the nuts.

5. Remove the two metal lock strips, and then slide the old high limit module off of the mounting studs.

6. Slide the new high limit module on to the mounting studs, and then place the two metal lock strips onto the studs.

7. Secure in place with a 3/8 inch socket or nut-driver, and then reconnect the wires.

8. Install the control board by performing the installation procedure.