A4: SK-5207 Trouble Code | Fire Alarm Resource Center
A4
trouble
Silent Knight SK-5207
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What This Code Means
A trouble condition exists on notification circuit (bell) number 4, or the power supply and panel voltage selections do not match.
Common Causes
1Trouble condition on notification circuit 4
2Power supply and panel voltage selections are not the same
3Open or short circuit on the bell output wiring
Resolution Steps
Verify that the power supply and panel voltage selections match in programming step 2. Inspect notification circuit 4 for wiring faults or device failures. Use Mode 25 (Accu-Zone Troubleshooting) to locate and correct the condition.