What does a bF error on a Honeywell alarm keypad indicate?

If your Honeywell fixed English alarm keypad displays a bF trouble signal, you have a problem with your AlarmNet alarm monitoring communicator. AlarmNet alarm communicators are also called Long Range Radios (LRR) and a bF trouble signal is associated with many different LRR problems. The most common reasons for a bF trouble signal is that the alarm communicator was not able to successfully transmit an alarm signal. If you have an internet alarm communicator, that could mean your internet connection is down. Perhaps there was a power outage and your modem and router lost power, or your internet service provider (ISP) may have had an interruption in service. If you have a cellular alarm communicator, the device may have lost connection with the AT&T cellular tower in your area. You should check with your AlarmNet dealer to see if your cellular communicator had a drop in cellular signal strength. These communication failure situations can resolve themselves and if the connection is restored, the AlarmNet alarm communicator should be able to automatically restore communications. The bF trouble signal will remain on your keypad until you acknowledge the trouble by pressing your code followed by the 'OFF' key. Your Honeywell security system wants to make sure that you are aware of the issue, even if it has already restored, and that is why the bF signal will remain on the keypad display even if the trouble is no longer present.

Another common reason for the bF signal, when first activating an AlarmNet communicator, is that the cover on the device is removed. AlarmNet devices have a built-in tamper so that you will be alerted if someone removes the cover of your communicator. When first activating your AlarmNet communicator, you have to remove the cover and therefore, many people end up getting the bF trouble signal once the device is active. If you simply put the cover back in place, and then go through a disarm sequence on your keypad (code + OFF), the bF signal should clear.

The bF signal can also be mistakenly read as a 6F signal as a lower case 'b' looks a lot like a '6' on a Honeywell fixed English alarm keypad. Please note that if you thought you had a 6F error message, it is the same thing as a bF trouble signal.

If you had an alphanumeric alarm keypad, the bF signal would actually be displayed as a 'Long Rng Trbl' which is short for a trouble with the long range radio.



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