How to Diagnose Not Ready Display on DS7400 Series Keypad with no Points Faulted

[#1]

Issue

Symptom

Why would the keypad display Not Ready, but no zone number is displayed?

Probable Cause

An invisible zone is not ready.

Possible Soultion

Enter a valid pin number + off to display the zone number of the invisible zone that is not ready.

Part numbers DS7400X, DS7400, DS7400Xi, DS7400XIVER2, DS7400XIVER3+, DS7400XIVER4+, DS7447