P4trouble
Silent Knight SK-5207: P4
Silent Knight SK-5207·0 views·0 field notes
What This Code Means
The panel has detected a short between any power source and earth ground.
Common Causes
- 1Short between terminals 12, 15, 18, 24, 26, 28, 30, 32, or 34 and earth ground
- 2Short between the batteries and earth ground
- 3Faulty field wiring
Resolution Steps
To determine the location of the short, 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.