P3: SK-5207 Trouble Code | Fire Alarm Resource Center
P3
trouble
Silent Knight SK-5207
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What This Code Means
The panel has detected a short between earth ground (terminal 52) and circuit ground (terminals 1, 10, 20, 25).
Common Causes
1Short between earth ground (terminal 52) and circuit ground (terminals 1, 10, 20, 25)
2Faulty field wiring
Resolution Steps
Place a DC volt meter with ground on terminal 1 and positive on terminal 52. The meter should be continuously fluctuating between 0 and 2.5 volts. Remove and leave off field wiring from the panel until the meter reads in this range. You can also use Accu-Zone Troubleshooting (Mode 25) to determine the location.