: If fuses blow during the first use, it's often a "flashover" in the electric motor rather than a control board failure.
For detailed technical diagrams and full wiring schematics, you can refer to the Crawford ECS 950 Service Manual on ManualsLib or the ASSA ABLOY Installation Guide on Scribd . 587859590-Trouble-Shooting-Guide-CDM-9-920-930-950-Uk.pdf crawford cdm9 950 installation manual
For full wiring diagrams and detailed parts lists, you can view the CDM9 950 Wiring Diagram on Scribd or consult the ASSA ABLOY Installation Guide . CDM9 ECS 950 Troubleshooting Guide | PDF - Scribd : If fuses blow during the first use,