Hi, my tuclear display switches from waiting, to chlorination, then it turns off, sometimes it turns back on with blank screen, or standby, or back to chlornating. Every 1-5 min. This is all happening in auto mode. If in service mode, does same thing . Never has alarms or anything. All chemistry is good. Had new pump put in few months ago, but that shouldn't matter, take wires off, new wires on. The aqualink program is there. Could it be bad cell or something Thanks