# RTU keeps calling when it should not

- Be sure that the initial alarm call is in fact being acknowledged. The RTU will specifically state "Alarms are acknowledged..." at the moment you successfully acknowledge the call. Press the Check Status key at the front panel or call the unit over the phone, to determine if all alarms are acknowledged.
- Also, be sure that the alarm violation has been corrected. Otherwise, even if the alarm is acknowledged, when the Alarm Reset Time period times out, dialing will begin again.
- Write down exactly what the RTU recites when it gives the unwanted call. This provides valuable guidance as to the cause and correction of the problem.
- You may need to lengthen the Alarm Trip Delay in order to minimize nuisance alarms, particularly the Power Failure Alarm Trip Delay (PFAIL).
- If you hear an alarm message with the phrase "Now Normal..." added at the end, it means that the violation occurred long enough to trip the alarm but has returned to normal by the time you are hearing the report.
- In the case of power failure lasting longer than the Power Failure Alarm Trip Delay, power will continue to be mentioned in any phone call or Front Panel Status Check, until the Alarm Reset time expires.
- Environmental factors such as lightning or power surges may have caused a program lock-up. If this is the case, then to return the RTU to normal operation, you will need to restore your configuration and speech data from Alarmware. If your data was not saved to Alarmware (see Backing Up Your Data), it may become necessary to cleardown all parameters to its factory defaults. This is accomplished by entering key code 93911 when in PROGRAM mode.