R5906848 /04 DP2K SLP Series364
Code 20414: “LDM 1-6 – Not configured (initialization failure)”
For this error the same troubleshooting table can be applied to as for code 20279: “LDM 1 – Not configured
(initialization failure)”.
Code 20425: “LDM 1-7 – 24V LCB voltage low”
Situation Solution
Wiring issue Check the cable between LCB and the 24V filter board on the one end,
and the cable between the filter board and the +24V module of the LDM
(LDM slot 7). Replace if necessary.
Malfunction 24V filter board. Replace the 24V filter board. See service procedure “Replacing the 24V
Filter board”, page 65.
Code 20426: “LDM 1-7 – 24V LCB voltage high”
For this error the same troubleshooting table can be applied to as for code 20425: “LDM 1-7 – 24 V LCB
voltage low”.
Code 20431: “LDM 1-7 – Heatsink rectifier temperature too high”
For this error the same troubleshooting table can be applied to as for code 20377: “LDM 1-2 – Heatsink
rectifier temperature too high”.
Code 20432: “LDM 1-7 – Heatsink rectifier temperature sensor shorted”
For this error the same troubleshooting table can be applied to as for code 20378: “LDM 1-2 – Heatsink
rectifier temperature sensor shorted”.
Code 20433: “LDM 1-7 – Heatsink rectifier temperature sensor open”
For this error the same troubleshooting table can be applied to as for code 20379: “LDM 1-2 – Heatsink
rectifier temperature sensor open”.
Code 20436: “LDM 1-7 – Not configured (invalid module type)”
For this error the same troubleshooting table can be applied to as for code 20278: “LDM 1 – Not configured
(invalid module type)”.
Code 20437: “LDM 1-7 – Not configured (no communication)”
Situation Solution
Mismatch in driver boards
mounted in the LDM
Check if the +24 V module is in the correct slot (LDM 1-7).
Code 20438: “LDM 1-7 – Not configured (initialization failure)”
For this error the same troubleshooting table can be applied to as for code 20279: “LDM 1 – Not configured
(initialization failure)”.
Code 20523: “LDM 1-3 – LLS bank 4 drain voltage too high”
For this error the same troubleshooting table can be applied to as for code 20323: “LDM 1 – LLS bank 1 drain
voltage too high”.
Code 20527: “LDM 1-3 – LLS bank 5 drain voltage too high”
For this error the same troubleshooting table can be applied to as for code 20323: “LDM 1 – LLS bank 1 drain
voltage too high”.
Troubleshooting