This is if the Slimline RF has different temperatures set at different times but you wish to have it set where you can manually adjust the temperature and it will stay there.
- Hold down the power button to turn the unit off
- Hold the clock button until you see 00 01 on the screen
- Tap the clock button until the small number goes to 17
- Press the down arrow to make large number 00
- Tap the A button to return to a blank screen
- Tap the power button to bring the unit back on