The range screw comes with a knob adjustment or screwdriver slot. The dial pointer is located on the adjustment stop bracket on the knob and screwdriver adjustment models.
Before you remove the cover, verify that all power to the thermostat and associated equipment is turned off.
To adjust the temperature set point stop of solid cover models, complete the following steps:
- Set the dial temperature to the required stop temperature.
- Remove the control cover.
- Loosen the cutout stop screw.
- Slide the screw to the front of the temperature control against the
plastic step behind the dial.Note: Sometimes an exact stop setting is not possible and you must set the stop to the closest step corresponding to the dial setting.
- Tighten the screw.
In the field, on convertible adjustment models, you can change from concealed screwdriver slot adjustment to knob adjustment or external screwdriver slot adjustment. These models come with a snap-in plug in the cover to provide concealed screwdriver slot adjustment. For knob adjustment, remove the snap-in plug and press the knob onto the slotted shaft. For external screwdriver slot adjustment, remove the snap-in plug.
The A28AA switch is stamped to indicate the HI-TEMP switch and the LO-TEMP switch.