No batteries in the remote control, empty batteries or batteries not installed correctly.
Ensure batteries are installed according to the illustration in the battery compartment. If they are, replace the batteries using two 1.5 V AA batteries (type R6). When using rechargeable batteries, the range of the remote control will be reduced due to lower (1.2 V) voltage. Rechargeable batteries auto-discharge and thus deplete more quickly.
- Obstruction between the display and the remote control may impede its function
- Make sure the remote control is pointed to remote control sensor on the display
- Some buttons have no or limited functions in certain modes
- The remote control must operate within the operating range of 7 meters (25 feet)