Hi guys. I have just installed a texecom premier 88 elite panel with everything working justfine. The only issue is that it keeps coming up with ac mains failure. This doesn't happen constantly just occasionally. For example after being away from site for 2 days the keypad had dropped about 10 hours from the correct time. When I go into the log it has recorded several ac mains failure. I have checked all mains connections going into the panel and they are fine. What do you reckon the issue is? Faulty power supply or pcb on the panel?