I have a TED that is about 5 years old. It has worked well until recently. Once a month I review and log totals for the past 2 months. Today the totals for both months appeared to be 50% lower than normal compared to previous months and years. My cycle ends on 11th . The Feb month total shown on Mar 11 did not match the Feb total shown on Feb 11. Both amounts were about 50% lower than usual for this time of year. Nothing has changed in my wiring or load.