: Press the blue key, Enter , or # key (varies by keypad model). Verify Feedback : Look at the LCD screen for validation: ACCEPT : Token validated; credit added. REJECT : Invalid token sequence. USED : Token entered previously. Diagnostic Shortcodes & Functions
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This occurs if a 20-digit token is entered incorrectly, belongs to a different meter serial number, or if the tariff rates have updated. Double-check the numbers and re-enter them slowly. "Old" Message After Key Revision
You don't need to wait for the power to go out to check your credit. On most models, simply press followed by Enter .
Whether you need to instantly download the documentation or learn the shortcuts to check your credit balance, this comprehensive guide covers everything found in the official technical manuals. Official Manual & Resource Links
Uses robust PLC (Power Line Carrier) or wireless communication between the keypad and meter.
The internal memory or clock has encountered an error. Disconnect the CIU from the wall plug (if plug-in based), wait 60 seconds, and plug it back in. If the error remains, contact your utility provider to reset the hardware. E02 / Error 02 (Tamper Status Active)