054 Ground fault: iO1000 Trouble Code | Fire Alarm Resource Center
054 Ground fault
trouble
Edwards EST iO1000
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What This Code Means
The panel detected a ground fault condition on the system.
Common Causes
1A short between one leg of a circuit and chassis ground
2A ground fault or line fault on dialer line 1 or line 2
3Circuit impedance to ground between 0 to 5 kΩ
Resolution Steps
Press the menu button and choose Diagnostics. Enter a level two password. Choose Fast Ground Check. Choose Start to turn on Fast Ground Check to decrease the system ground fault check time to every four seconds. Once you solve the ground faults in the system, choose End to turn off Fast Ground Check.
