11
2.2.9
Troubleshooting
Table 2.2.9.1
Fault
Possible Cause
Solution
The indicator is off
No power applied
Check the voltage at the MCP
contacts “+” and “–“; in case of
zero voltage check the integrity
of cables and contact joints
No fire alarm after
pressing the operating
element
No communications between the
MCP and control and indicating
equipment
Check the integrity of cable and
contact joints
Internal circuitry malfunction
Send the MCP for repair
Structure defect of the MCP
