Probable Cause
- Attempting to enter program not available.
- Malfunctioning Keypad.
- Malfunctioning Display Console
Corrective Action
- Refer to Operation Manual for program availability.
- Test Keypad in Diagnostics.
- Access Diagnostics by holding down the UP ARROW, then pressing the CLEAR key twice.
- Then press and hold COOL DOWN and then press ENTER for entry into the TEST/SERVICE MENU.
- Test with substitute Display Console.
- Replace malfunctioning Display Console.
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