C192A20 SPI output error

ladd

I have looked into this checked fuses on board all check ok unless getting feed back thru printed circuit  24 and 48 volt less do come on for a brief second then go out then alarm  as I have a few controllers can i swap the safety bord out of one of them ? All ur10 cb3

matthewd92

Yes you should be able to swap the boards. Is the 48v power supply working?  We’ve had those fail before in one or two instances. 

ladd

Yes 48v is ok. After  checking connections again found terminal loose on jumper 
On power   
Thanks for the reply