Display shows E6 and unit regenerates at incorrect times

Safety first: No internal electrical work is required for basic reprogramming.

Steps to check:

• 1. Set correct time: Enter the programming mode and set the current time-of-day, ensuring AM/PM is correct if applicable.
• 2. Verify regeneration time: Check the programmed regeneration start time (often 2:00 AM by default). Adjust to a low-usage period.
• 3. Check for frequent power loss: If the clock resets often, verify the outlet is not switched and that the transformer is secure.
• 4. Replace control board: If the clock drifts significantly or loses time despite stable power, the clock circuit is failing and the board should be replaced.

When to call a technician: If you cannot access or change the time settings due to keypad or board issues, professional service is recommended.